Simplify 5a-2 (-3a + b).

Test scores on a statewide standardized test for a large population of students are normally distributed with mean = 9.44 and standard deviation = 1.75. Certificates are given to students who score in the top 2.5% of those who took the test.

James, Priya, and Siobhan work in a grocery store. James makes $7.00 per hour. Priya makes 20% more than james, and Siobhan makes 5% less then priya. How much does Siobhan make per hour?

Simplify the expression (8^12) ^3

The product of 2 and the difference of 5x and 6 is less than or equal to the sum of x and 24?

For sample mean x = 150, sample size n = 36 and sample standard deviation s = 40 find 80% confidence interval for population mean. population standard deviation is not known. use formula for one mean t-interval procedure in section 8.

The length of a rectangle is 4 times the width. The perimeter is 90 cm. Find the width and length.

Suppose that today (year 0) your car is worth $17,000. Each year your car loses 10% of its value, but at the end of each year you add customizations to your car which increase its value by $20. Write a recurrence relation to model this situation.

Jenny saved 1/6 of her paycheck and saves 2/5 of the remaining amount. What fraction of her total paycheck is saved?

Y varies directly with x how do I find y when I know x

Create an equivalent system of these equations and test your solution x + y = 1 x 3y = 9