Can somebody please help me . ?

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

1) what is the measure of the exterior angle, ∠uvw ? 2) in triangle man, what is the measure of the exterior angle at n (in degrees)?

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.