What basic math skills should I know for grade 9 math

Suppose the working-age population of a fictional economy falls into the following categories: 90 are retired or homemakers; 60 have full time employment; 20 parttime employment; 20 do not have employment and are actively looking;

What is the solution to the linear equation - 6z + 1 = 13? Select one: No Solution Infinitely many solutions z = 2 z = - 2

13+4a+2a=3a+1 multiple step equation

1. Identify the hypothesis and conclusion of this conditional statement: If two lines intersect at right angles, then the two lines are perpendicular. Hypothesis: The two lines are not perpendicular. Conclusion: Two lines intersect at right angles.

What is the simplified form of f x - 1 + 4 + 7x - 3

Order √3, 2π, and 1.5 from least to greatest.

The arithmetic mean of the monthly salary of two employees is $3210. One employee earns $3470 per month. What is the monthly salary of the other employee?

Write the expression in exponential form. log 3^9 = 2

Ariana has $1.40 worth of nickels and dimes. She had twic as many nickels as dimes. Determine the number of nickels and the number of dimes that Ariana has.

Who are the Cherokee