Answer:
Let the cost of orange be X and cost of cherry be y
3x + 9y = 78
8x + 4y = 58
Solving equation using elimination method
multiplying eq 1 with 8 and eq 2 with 3
8(3x + 9y ) = 78(8)
3( 8x + 4y) = 3(58)
24x + 72 y = 624
24x + 12y = 174
subtracting,
60 y = 450
y = 7.5
3x + 9(7.5) = 78
3x + 67.5 = 78
3x = 78 - 67.5
3x = 10.5
x = 3.5
<h2>Box of orange = $3.5 </h2><h2>Box of cherry = $7.5</h2>
Solving the inequality
we get 
Step-by-step explanation:
We need to solve the inequality 
Solving:

Multiplying 4 with terms inside the bracket.

Adding -36 on both sides:

Adding -6z on both sides


Divide both sides by 6

So, solving the inequality
we get 
Keywords: Solving inequalities
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The answer would be G. To get this do y2-y1/x2-x1. And then simplify.
30 minutes for each girl. 30min x 4girls = 120min for all girls. 120/60=2 hrs