The final price is the cost plus the tax.
Since we know the tax and a percent, we can write this as
T = C(1+r)
T = what Graham paid = $87.45
C = cost before tax
r = tax rate expressed as a decimal = .40
Plugging in what we know
87.45 = C (1+.4)
87.45 = C(1.4)
Divide both sides by 1.4
C = $62.46
Answer: answer is 8 because -5 + 1 = -4 then + 10 = 4
Answer: D
Explanation: For this problem you can substitute f(x) and x for 21 and -6 respectively.
Thus, we have 21=-3(-6)+4
That is the answer , i looked it up for you my self :)
Answer:
133 girls
Step-by-step explanation:
Total members = x
Number of boys = 
Number of girls = 
Number of boys + Number of girls = total members

x = 171
Number of boys =
= 2 * 19 = 38
Number of girls = 38 + 95 = 133