For some medical imaging, the scale of the image is 5 : 1. that means that if an image is 5 cm long, the corresponding length on the person's body is 1 cm. find the actual area of a lesion if its image has area 7.5 cm squared.

I believe it would be 1.5 cm squared because 7.5/5 = 5

J= r + 9 because since jessica rode 9 more miles than roger, you add 9 miles to rogers mileage.

It's like discovering the answer to a puzzle. the purpose in solving an equation is to find the value or values of the variable that makes it a true statement. any value of the variable that makes the equation true is called a solution to the equation.