What is 1/10 divided by 9/10?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay

Simplify -4z+2y-y+-18z a.-22z+y b.-14z+2 c.3y+22z d. y +14z