Find the sum 7/10 + 20/100 as a fraction

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

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone

What is the benefit of converting measures in a ratio to the same unit