3. Find the value of x. Round your answer to the nearest tenth.
10
x
A) 11.25
B) 8.9
C) 7.2
D) 4.0
9
00

What should be done to solve the equation? x+14=21 add 14 to both sides of the equation. subtract 14 from the left side of the equation. add 14 to the left side and subtract 14 from the right side of the equation. subtract 14 from both sides of the equation.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2