Answer:
You will save: $15
Total cost: $60
Step-by-step explanation:
First turn the percent into a decimal.
To do so move the . over to the left twice.
20% - .20
Now multiply 75 by .20
75 x .20 = 15
So you will save $15
Now subtract 15 from 75
75 - 15 = 60
Answer: 3 and 3/7
explanation:
Answer: THIRD OPTION.
Step-by-step explanation:
We need to remember that we can create a perfect square trinomial by squaring a binomial:

Then we need need to pick the coefficient of the x term of the given expression, divide it by 2 and square it:

Therefore, the number that should be added to the given expression in order to create a perfect square trinomial is:
Switch y and x: x =16y^2 + 1
Solve for y: x-1=16y^2
16y =+-√(x-1)
y =+-√(x-1)/16