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Please Answer if you can!

I have 5 questions.

1. Ron is seeking a loan with a simple interest rate of 7% per year. He wants to borrow $4,500.
How much will he be charged in interest after 36 months?

A. $9,450

B. $945

C. $11,340

D. $5,445

2. In Texas the state sales tax rate is 6%. Beth purchases a washing machine at $420.00 and a dryer for $360.00.
How much will Beth's total be including state sales tax?

A. $445.20

B. $826.80

C. $780.00

D. $46.80

3. Mrs. Garland bought x number of shirts for the new members of her chorus. The cost for x number of shirts, including $3.99 shipping, was $77.49. Each shirt costs $12.25. There was no sales tax on the purchase. Which equation can be used to find x, total number of shirts purchased?

A. 3.99x + 2.25 = 77.49

B. 3.99(x + 12.25) = 77.49

C. 12.25x + 3.99 = 77.49

D. 12.25(x + 3.99) =77.49

4. Efua and Ngozi go to McDonalds. They each order 1 item off the $1 menu. How much will they pay with 8% tax?

A. $0.16

B. $2.08

C. $54

D. $2.16

5. Hanane eats at a restaurant. The service is poor, so she only leaves a 5% tip on a $50 bill. What was the total bill including tip?

A. $52.50

B. $25

C. $2.50

D. $55

Thanks!

Respuesta :

1.
[tex]4500 \times 7\% \\ = 4500 \times \dfrac{7}{100} \\ = 315[/tex]
36 months = 3 years
[tex]315 \times 3 = 945[/tex]
Answer is B.

2.
[tex]420 + 360 = 780 \\ 780 \times 106\% \\ = 780 \times \dfrac{106}{100} \\ = 826.8[/tex]
Answer is B.

3. Answer is C.

4.
[tex]1 + 1 = 2 \\ 2 \times 108\% \\ = 2 \times \frac{108}{100} \\ = 2.16[/tex]
Answer is D.

5.
[tex]50 \times 105\% \\ = 50 \times \frac{105}{100} \\ = 52.5[/tex]
Answer is A.

Hope this helps. - M

for 1 i got $945.

For 2 i got $826.80.

For 3 i got c.

For 4 i got $2.16.

For 5 i got $52.50


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