In a fish tank 8/11 of the fish have red a stripe on them. if 16 of the fish have red stripes how many total fish are in the tank?

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

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?