Need with #8 and #10. math. rates.

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

What is the average diastolic blood pressure for adults