Yesterday,80% of mr. kaiser's class turned in there homework assignment. there are 30 student in mr. kaiser's class. use paper to determine how many students turned in homework yesterday.

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

You have a square piece of cardboard that measures 14 inches on each side. to build a box, you cut congruent squares out of each corner of the cardboard. use the picture to find the area of the cardboard you were used to build the box