3x-28=66-x find the value of x

1. Suppose the coefficient matrix of a linear system of four equations in four variables has a pivot in each column. Explain why the system has a unique solution. 2.

What is a verbal expression for 5 (a-b)

Solve for t. use the quadratic formula. d=-16t^2+12t

Identify the like terms, explain how you know they are like terms, and simplify the expressions: 10y + 3x + 10 + x - 2y 3x - y + 4x + 6 - 2y Factor 6a + 3 Kate is going to the fair with three of her friends. It will cost $5.

If Jack borrowed $200 and repaid $226 altogether at the end of 2 years, what was the interest rate? Hint: Find the amount of interest from the repaid amount.

A multivitamin tablet contains 0.13g of vitamin C. How much vitamin C does a bottle of 40 tablets contain?

Slide 8 left and 5 down

Write as a decimal 1 5/8

On a scale drawing, 1/4 inch = 1 foot. What are the dimensions on the scale for a room that is 27 feet by 20 feet?

Work out the height of a triangle with a base 6cm and area 27cm2