A manufacturer produces two models of toy airplanes. It takes the manufacturer 6 minutes to assemble model A and 9 minutes to package it. It takes the manufacturer 7 minutes to assemble model B and 5 minutes to package it. In a given
week, the total available time for assembling is 840 minutes, and the total available time for packaging is 900 minutes. Let x
be the number of model A units produced. Let y be the number of model B units produced. Shade the region corresponding
to all values of x and y that satisfy these requirements.

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !