What percent of 84 is 12?

A plumber charges a visitation fee of $60 and $45 per hour for time worked. If h is the number of hours worked and t is the total charge for completed work, then the variables are related by the equation t = 45h + 60.

Sam had a total of 80 foreign stamps amd local stamps combined. after giving away 1/3 of his foreign stamos and 10 local stamps he had an equal number left. how many stamps did they have in the beginning

The area of a triangle is 92 square inches. The base is 23 inches. What is the height in inches? Do not include units in your answer.

Find the measures of two angels one positive and one negative that are coterminal with pie-7

at Phil's work there are 12 part time workers and 18 full time workers what is the ratio of part time workers to total workers

Henry is mixing concrete. To make concrete he needs to mix cement, sand and gravel in the ratio 1 : 4 : 7 by weight. Henry needs to make 180kg of concrete. He has 16kg of cement, 60.5kg of sand and 100kg of gravel.

The function t (x) = 3x + 5 determines how many cans of corn kernels a food truck needs to stock, where x is the number of shifts the crew is going to work in the truck. The crew uses c (t (x)) to find the amount of money to spend on corn.

Marketing estimates that a new instrument for the analysis of soil samples will be very successful, moderately successful, or unsuccessful, with probabilities 0.3, 0.3, and 0.4, respectively.

Find the roots of the following equations. a) 4x+9=34 b) (x-4) (x+2) = 0 c) 2x^2-6x+4=0

6 · 14 - (9 + 8) 2 =