Answer:

Step-by-step explanation:
Given



Required
Determine the total miles


Convert to improper fractions

Take LCM



Answer:
2A/b = h
Step-by-step explanation:
A=1/2bh
Multiply each side by 2
2A = 2 * 1/2 bh
2A = bh
Divide each side by b
2A/b = bh/b
2A/b = h
Answer:
9.75 Average age
Step-by-step explanation:
15/7 x 5 and 2/5 x 7
75/35 - 14/35 = 61/35