Not sure how to put this in an equation.. please help

Step-by-step explanation:

There are a couple of ways of doing this. The simplest is to realize that when bulbs are connected in parallel (as these 5 are) then each one needs 5/8 of an ampere to operate.

1 bulb requires 5/8 of an ampere

5 bulbs require x amps

1  bulb / 5/8 ampere = 5 bulbs / x     Cross Multiply

x = 5/8 * 5                                           Combine

x = 25/8  

x = 3 1/8

x = 3.125 amperes.

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft

rounding to the nearest thousandth would be 452,000