David hikes 2 ¼ miles in ½ an hour. a. What is his rate in miles per hour?
b. At this rate, how long will it take him to walk 18 miles?
c. If he walks for 7 hours, how far will he have gone?

a. 4.5 miles per hour

b. 4 hours

c. 31.5 miles

Step-by-step explanation:

1. Easy since its half an hour multiply by 2

4 2/4=4 1/2 or 4.5

2. 18 miles would take

18 divided by 4.5 is equal to

4 hours

3. & hours just multiply 4.5 by 7

31.5 miles

probability for j is 1/4

while

a is 1/6

55% are girls and 45% are boys : ) hope this

step-by-step explanation: