Can anybody help me with 15 16 17

Answer:
Step-by-step explanation:
15: 48/12 = 8/2 (divided both sides by 6)= 4/1 She planted 4 tulips a minute.
16: 72/36 = 12/6 = 6/3 = 2/1 He decorated 2 cookies per minute.
17: 45/3 = 15/1 She biked 15 miles per hour
Hey!
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Question #15:
[tex]\text{Divide~by~twelve:}\\\frac{48~tulips}{12~minutes} = \frac{4~tulips}{1~minute}[/tex]
[tex]\Large\boxed{\mathsf{4~tulips~per~minute!}}[/tex]
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Question #16:
[tex]\text{Divide~by~thirty-six:}\\\frac{72~cookies}{36~minutes} = \frac{2~cookies}{1~minute}[/tex]
[tex]\Large\boxed{\mathsf{2~cookies~per~minute!}}[/tex]
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Question #17:
[tex]\text{Divide~by~three:}\\\frac{45~miles}{3~hours} = \frac{15~miles}{1~hour}[/tex]
[tex]\Large\boxed{\mathsf{15~miles~per~hour!}}[/tex]
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Hope This Helped! Good Luck!