(2+3+5)+(1÷√(7+5))+(1÷(5+√(4+3×5))− (1÷(6−√(3 +5))

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

Which expression and diagram represent “renee biked four times as far this month as last month”?