Common denominator- 70
24/35 = 48/70
7/10= 49/70
7/10 is larger.
Step-by-step explanation:

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For the same amount set up two equations set equal to each other.
$70h + 130 = 80h + $40
Subtract 80h from both sides
-10h + 130 = 40
subtract 130 from both sides
-10h = -90 divide both sides by -10
h = 9 hours
CHECK
70(9) + 130 = $760
80(9) + 40 = $760
X=9 just solve the equation and combine like terms
Answer:
SA= 28 in^2
V= 14 in^3
Step-by-step explanation:
circumference= 2πr
9.4 = 2πr
r = 1.496
surface area of a ball = 
= 
=28 in^2
volume of a ball= 
= 
=14 in^3