How get this answer 11/5-2/5

Cherries cost $4/lb. Grapes cost $1.50/lb. You can spend no more than $9 on fruit, and you need at least 3 lb in all. Create a graph showing the amount of each fruit you can buy.

If the H. C. F of 210 and 55 is expressible in the form of 210*5 + 55y, find 'y'?

Two problems I can't get is; 94-4.8 I know the answer is 89.2 but how?

A small highschool class has 9 students were told they would receive a pizza party if their class average was 92% or higher on the next exam. students 1-8 scored the following on the exam, 86,91,98,83,97,89,99, and 96.

Arrange 14.200, 14.204, 14.240, 14.210

To which power must you raise the expression y 1/5 to get y as the result

What is C = 2πr? Solve for r.

X varies directly as y, and x = 153 when y = 9. Find x when y = 13. A: 106 B: 157 C: 221

How I get a score from a game?

Write each of the following as a mathematical expression. State whether the expression is linear or nonlinear. If it is nonlinear, then explain why. 1. A number decreased by three squared 2. The quotient of two and a number, subtracted from seven 3.