Answer:
7 dollars
Step-by-step explanation:
To solve, use this equation:
34.20 - (16 x 1.70) = x
First do 16 x 1.70
This equals 27.2
34.20 - 27.2 = x
Now subtract
34.20 - 27.20 = $7
The student card $7
50 percent of a number is 7
Set up an equation.
50% * x = 7
0.50 * x = 7
0.50x = 7
Divide 0.50 to both sides:
x = 14
Answer:
A=380.13cm^2 hope this helps you