Jason made christmas cookies in the shape of stars and snowman. she made 12 star cookies and 8 snowman cookies. what percent of the cookies were shaped like a star?

49xy +34y - 72z. determine the degree of the polynomial

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?