Marc buys three magazines for $7.50 at a school fundraiser. If all magazines in the fundraiser cost the same, what is the constant of proportionality in this situation? A. 2
B. 2.5
C. 3
D. 7.5

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°