Answer:
the answer is A.
Step-by-step explanation:
(
×
)÷
2×9= 18
6+6= 12
÷
= 

Answer:
18
Step-by-step explanation:
9*2= 18
18-9=9
because it said twice as old as Robin you multiply
Hope this helped you
Answer:
Step-by-step explanation:
Let x be the number of hours
Rental A charges:
Rate per hour = $4.50
Rate for x hours = 4.50x
Equation: 15 + 4.50x
Rental B charges:
Rate per hour = $ 5
Rate for x hours = 5x
Equation: 12.50 + 5x
The worm would move 6.375 inches in 85 minutes (1 hour 25 minutes).