Write the number 3.8 in the forum of a/b using integers to show that it is a rational number

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)?

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount