The time t (in hours) that it takes a group of volunteers to build a
playground varies inversely with the number n of volunteers. It takes
a group of 10 volunteers 12 hours to build the playground. How long
would it take a group of 15 volunteers?

Abus ride for a senior citizen cost $1.25. a monthly pass costs $35. write and inequality that represents the number of times a senior citizen must ride the bus for the monthly pass to be a better deal.

Alogical argument that is presented in graphical form using boxes and arrows is called?

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