They are all pretty easy all you do is multiply the cost by the amount of things you buy. For example number 4 your variables are cost (c) and songs (s). Your equation is c•s so $0.99 • s. 50 songs would be .99 • 50 which is $49.50
Answer:
sorry if this is wrong
Step-by-step explanation:
a. 3
b.15
c.8
F(x)=x-5
f(4)=x-5
f(4)=4-5
f(4)=-1
The answer of this problem is A because 3 times 21 is 63 and then you plus 1
which is 64
12x-5y=2
-5y=2-12x
y=-2/5+12/5x
should know the m=12/5
and (2,3) bring them to the line equation:
3=12/5x2+b
6/5+b=3
b=3-6/5
b=9/5
y=12/5x+9/5
Which means the answer is not in the choices.