What is the value of b in the equation (y^-9) ^b = y^45?

A. - 405

B. - 5

C. 5

D. 405

3 (x+2) <2 (x-1) solve this inequality

While Christine was visiting her sister in ashland she bought a microscope that was marked down 60% from the original price of 75$. If the sales tax in Ashland is 10% what was the total cost of the microscope?

What is the factorization of 81a6 - 100?

How do i create a word problem for systems of equations

Determine if x=1 is the solution to this linear equation 3x - 6 (5x+5) 9x 6 Is x=1 l the solution? No. When 1 is substuted for the variable, the result is a true statement. No. When 1 is substituted for the variable, the result is a false statement.

What is the distance between (5, 7) and ( - 2, - 2) ? Round to the nearest tenth, if necessary.

A scale model of an object is 7 inches tall. The actual object is 343 feet tall. What is the scale factor of the model?

How to right 100,203 in two other forms

Sam wants to leave an 18% tip for his dinner. The bill is for $23.50. Which equation could be used to find the total amount that Sam should pay? 23.5 = 0.18x x = (0.18) (23.5) x = (23.5) (1.18) 1.18 = 23.5x

15. A new section of 12-inch diameter pipe is to be disinfected before it is put into service. If the length of the pipeline is 1200 feet, how many gallons of water will be needed to fill it?