What is the product of 2.31 and 0.21

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Solve the equation x/4 - 5= -8 -27 -12 -7 12

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)?