Triangle abc is congruent to triangle dfe. find x

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.

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3