Girl started with 30 pairs of shoes and donated x pairs. Boy started with 22 pairs of shoes and donated half as many pairs as Girl did. How many pairs of shoes did Girl donate if they had same number of shoes remaining?

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?