Four friends went on vacation with their family over the summer. harlin’s family drove 363 miles in 6 hours, kevin went 435 miles in 7 hours, shanna drove 500 miles in 8 hours, hector drove 215 miles in 5 hours. which family drove the fastest?

Shanna's family

Step-by-step explanation:

d/t = r (distance/time = rate)

Harlin: 363/6 = 60.5 mph

Kevin: 435/7 = 62.14 mph

Shanna: 500/8 = 62.5 mph

Hector: 215/5 = 43 mph

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons