What is the value of the expression below when LaTeX: a\:=\:-7a = − 7 , LaTeX: b\:=\:\frac{3}{4}b = 3 4, and LaTeX: c\:=\:-2.5c = − 2.5?

Which expression is equivalent to sq-80

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

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.