Every student's grade starts at 100% and decreases by 2.25% for every missed assignment. To pass, a student's grade must be at least a 60%.
Write an inequality to model this situation. (Use z as your variable.)

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

What is the base of 1/9 to the power of 2

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed