The base length of a parallelogram is multiplied by 5. Which of the following describes the effect of this change on the area.

A. The area is multiplied by 2.5.

B. The area is multiplied by 5.

C. The area is multiplied by 25.

D. The area is doubled.

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

Find the value of x for which abcd must be a parallelogram -9-6x x-30

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.