A bird perched on top of a high branch that is 36 ft off the ground spots a worm on the ground which is 12 ft from the base of the tree. What is the angle of elevation from
the worm to the bird? Round to the nearest whole degree.

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.