How to subtract percentages?

The solution of y²-2y=8 a) 0 or 2 b) 5 and 10 c) 0 and - 2 d) 2 and 5

Determine whether the description corresponds to an observational study or an experiment. Research is conducted to determine if there is a relation between hearing loss and exposure to mumps. exposure to mumps.

A restaurant bill is 18.50. How much is the bill after 15% tip is added.

How do I solve (4x/7) - (5/6)

Since middle school opened, the girls' basketball team has had the same record every season. The team has won a total of 84 games while losing only 7 games. Find the constant of proportionality of wins to losses.

Y varies directly as x and y is 12 when x is 2. Find y when x is 11.

What is the base of the exponential function f (x) = 0.5x-2?

Ef divided by 2 if if e = - 4 and f = 8 a 16 b - 16 c - 32 d 32

solve the equation 8xsquared+2x-3=0 hence solve the equation 8cos^2y+2cosy_3=0 for the range 0degrees <y <180

Rosa earns $12 per hour. In 7.5 hours, she will earn x dollars. Which is a valid proportion that can be used to solve the problem?