Spencer wants to burn 450 calories while biking. biking burns about 10 calories per minute. when spencer goes biking, he usually plans to stop and rest for about 15 minutes. complete the equation below to find the total number of minutes (including rest) that spencer should plan to be out biking. use m to represent the total minutes.

( add the numbers into these blanks: # (# - #) = # #=blanks)

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations