Answer:
3f - 8 = number of pennies
Step-by-step explanation:
p = 3*f - 8
Let f represent the number of five dollar bills and p the number of pennies.
The expression "The number of pennies is" is equivalent to "p =";
"three times the number of five dollar bills" is equivalent to "3*f"
"eight less than three times the number of five dollar bills" is equivalent to "3*f - 8"
Then the expression is p = 3*f - 8
Given the slope m and a point (a,b) of a line, its equation is given by
In your case, a = -4, b = 7 and m=1/2, so we have
a=d-c/b
Subtract c from both sides
divide both sides by b
y= 25x