The sum of two numbers is $30$. the difference of twice the larger number and three times the smaller number is $5$. what is the positive difference between the two numbers?

Rachel used 12 cubes to make this 3-step staircase. if she uses a total of 42 cubes to make a similar staircase, how many steps will the staircase have? think of usiing objects to solve this problem

Select all expressions equivalent to 10x-20.

What is the sum of the polynomials? (+9) + (-3x2 - 11x + 4)

Maxine gives each of her 4 cousins 3 cookies per day out of a box of cookies which has 120 cookies. Identify the rate of change (slope) and the initial amount (y-intercept). Write and equation.

There are 18 cans of peas in a case. Each can of peas is 12 ounces. If a case of peas costs $14.22, what is the unit price per can of peas? a. $0.07 b. $0.08 c. $0.79 d. $1.19

Which distribution has the greatest spread a. 13.7 - 3.1B. 423.6 - 1.3C. 38.4 - 7.2D. 231.4 - 5.5?

F (x) = x5 - 2X * + 3x3 - 2x² + 7x-1

Find two numbers whose product is 20 and whose sum is 12

Round 7.92 + 5.37 to estimate

You travel for 450 miles and it takes you 7 hours. What is the average rate?