Read the statement shown below. "if jessica is in grade 8, then amy is in grade 9." which of these is logically equivalent to the above statement? a. if amy is in grade 9, then jessica is not in grade 8. b. if amy is not in grade 9, then jessica is not in grade 8. c. if jessica is in grade 8, then amy cannot be in grade 9. d. if jessica is not in grade 8, then amy is in grade 9.

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)?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?