Do the top please, been trying for hours to solve

Answer:
2x+30
Step-by-step explanation:
The perimeter of a rectangle is
P = 2(l+w)
The length is 2/3 x+10 and the width is 1/3x +5
P = 2(2/3x +10 + 1/3x +5)
Combine like terms
P = 2(2/3x + 1/3x +10+5)
= 2(x +15)
Distribute the 2
= 2x+30
Answer:
P = 2x + 30
Step-by-step explanation:
Perimeter equation of a rectangle: P = 2L + 2W
Substitute L with (2/3)x + 10
Substitute W with (1/3)x + 5
P = 2((2/3)x + 10) + 2((1/3)x + 5)
Start simplifying:
P = 2(2x/3 + 10) + 2(x/3 + 5)
P = (4x/3 + 20) + (2x/3 + 10)
P = 6x/3 + 20 + 10
P = 6x/3 + 30
P = 2x + 30