The sum of 21and 4 doubled

Nine decreased by triple a number.

What type of slope does a horizontal line have?

In a two person race, if the Republican presidential candidate is projected to attract 44% ± 3% of the vote and the Democratic candidate is projected to attract 46%±3% of the vote, then

How do you convert 48 quarts to gallons

Kimberly is making strawberry lemonade for her class. she mixes two liters of lemonade and 3000 milliliters of strawberry juice. how many liters of strawberry lemonade will Kimberly have?

Diane received 300 votes in the election for student council president. That was 60% of the students who voted election. How many students voted in the election?

Find two values of c in ( - π / 4, π / 4) such that f (c) is equal to the average value of f (x) = 2 cos (2x) on ( - π / 4, π / 4). Round your answers to three decimal places.

Earned at least $125 working at the mall for 13 hours last week. How many dollars per hour does Max earn? Identify the number (s) that are included in the solution set. A. 12 B. 10 C. 8 D. 9

A contractor is tiling the bottom of a round fish pond with 1-inch square tiles that cost $0.04 each. the fishpond has a diameter of 120 inches. how much will he spend on tiles?

What does the graph of an equation reveal about the solutions to the equation? How do you solve a system of equations approximately using graphs and tables?