What rational number is equal to 4.5 40/9 41/9 42/9 43/9

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.