Which should be calculated first to solve this problem?

West's mother gave him $40 to spend at the toy store to buy presents for his cousins. West already had $20 saved from doing errands. West bought 3 toy trucks for $9.99 each and a basketball for $8.99. West had to pay 9% tax on his purchases. How much did West spend?

A.
the cost of 3 basketballs

B.
the total cost of one toy trucks and one basketball

C.
the amount of tax paid

D.
the cost of 3 toy trucks

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

answer: i think one of the answer is $150 and $300?

step-by-step explanation:

its adding 5.5 each time

step-by-step explanation:

i believe it's a.

i'm not sure on this one, most likely correct.