Answer:
Step-by-step explanation:
425=25x-10x-250
675=15x
x=45
45 calculators were sold.
Mark brainliest please if this answer work please
Answer:
$7.50
Step-by-step explanation:
30/4 = $7.50
Answer:
Step-by-step explanation:
The given expression is 
We want to find the value of h(-9).
We substitute r=-9 to obtain:
We multiply out to obtain:
We simplify the denominator to obtain:
This is the same as:
Answer:
32 - 2.5x - 2y
Step-by-step explanation:
He bought 2.5 pounds weight of apples for x dollars a pound. Thus, cost is 2.5x.
He bought 2 bags of lettuce for y dollars each. Thus, cost is 2y
Total bill cost = 2.5x + 2y
We are told he has a coupon for $2 off his bill.
This means the amount he will pay will now be;
2.5x + 2y - 2
Gabriel has $30 to pay for the groceries.
Thus, his change will be;
30 - (2.5x + 2y - 2)
This gives;
32 - 2.5x - 2y
9) x= -6
10) x= 3/2
11) x= -4,0,5
12) no solution
