Dylan paid a plumber $120 for 4 hours of labor. How much does the plumber charge per hour of labor? $15 per hour $30 per hour $116 per hour $480 per hour

X/2 operation and verbal math phrase

A random sample of 20 items is selected from a population. to determine the appropriate critical t-value what number of degrees of freedom should be used?

An architect is planning several stone spheres of different sizes into the landscaping of a public park, and workers who will be applying the finish to the exterior of the spheres need to know the surface area of each sphere.

Vector's map has the scale missing. He knows that the distance from the lake to the youth center is 8 miles. On the map, they are 2 inches apart. What is the scale for vector's map

How do you do percent of change

Dr. Barber ordered 121 syringes and 53 needles. In total, how many items did Dr. Barber ordered

Jaime wants to know how fast she can type, so she times herself as she types a paper. The paper has 442 words in it, and Jaime types it in 13 minutes. What is her typing rate, in words per minute?

How can one fourthx - 3 = one halfx + 8 be set up as a system of equations?

Chris invests $2,200 into three accounts that pay 6%, 8% and 9% in annual interest. He has three times as much invested at 9% as he does at 6%. If his total interest for the year is $178, how much is invested at each rate?

If AC = 12 and BC = 13, find AB.