Briana spent 2 3/4 hours on her science project. jackson worked 1 1/3 times as long on his science project as briana worked. for how many hours did jackson work on his science project?

Which expression is equivalent to sq-80

How do i do this? i don’t understand

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.