A hat salesman earns a commission of 30% of all hat sales made. Yesterday he sold 3 hats for $90 each and 4 hats for $50 each. How much did he earn in commission yesterday?

The expression 0.01E + 0.003E2 gives the thickness in millimeters (mm) of the insulation needed for a high voltage cable. E is the number of kilovolts carried by the cable. What thickness of insulation material is needed for 5 kilovolt cable?

Fatima is shading this model to show 0.08 x 3. Shade the correct amount of boxes that will show the product

To solve a right triangle means to find the measures of all its and

What is the solution to the system of equations y = - 3x + 6 y = 9

How to check what values of tangent line of derivative are horizontal?

A prism has total surface area of 360 m2 and volume of 60 m3. If the length, width, and height are reduced to half their original sizes, what will be the following? A. the new surface area B.

Which measurement below has four significant figures? A. 14,052 km B. 12.05 L C. 0.0230 kg D. 12.501 m

What is t? 3t - 2/3=1+t

The first equation is 3x + 2y = 17 and the second equation is - 2x - y = - 12. What would I have to multiply the second equation by so I could add andeliminate the y's. 3 2 -2 0

5) Kelly earned $20 for babysitting. She has also earned money by doing chores. Altogether, she has earned $100. How much did she earn doing chores?