Answer:
1) x = 15
Step-by-step explanation:
We use the Pythagorean thm for these questions. Where a and b are the legs (So order doesn't matter), and where c is the hypotenuse
1)
a² + b² = c²
9² + 12² = x²
81 + 144 = x²
x² = 225
You square root each side so you can get rid of the exponent on x.

x = 15
Answer:
The correct answer is (x-y)
Step-by-step explanation:
x^2-xy
x(x-y)
put the percentage on the right and label it "% of parents who use it "
and at the bottom of the graph, put " types of parental control"
count the percentages by five's starting from 25
then just fill in the shading