(I NEED HELP ASAP PLS I HAVE A TEST) Max scored 6 marks more than what he did in the previous test, in which he scored 20. liza scored 30 marks more than she did in the previous test, in which she scored 90. Who showed less improvement?

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?

In which form is the following function written? y = - 2(x – 3)(x + 5)

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?