Solve each system using substitution.

-x^2-x+19=y

X=y+80

In how many ways can a group of 4 boys be selected from 10 if the oldest boy is included in each group?

What are the solutions of the compound inequality? graph the solutions. - 2 < 4x - 10 < 6

The mass of Denise's rock sample is 684 grams. The mass of Pauline's rock sample is 29,510 centigrade. How much greater is the mass of Denise's sample than Pauline's sample.

Roy drives a sedan that gets mileage of 30 miles per gallon. If fuel consumption is represented by g and mileage by m, which function represents the relationship between m and g?

Bill wants to make 22 small pizzas for a party. He has 16 cups of flour. Each pizza crust takes - cup of flour. Doe he have enough flour? 3

Randi earned a profit of $60.00 on her last snow shoveling and salting job. Write an equation that can be solved to find how many hours Randi spent shoveling and salting to earn a profit of $60.00. HINT: Randi charges $25 an hour to shovel and salt.

The lengths of the sides of a triangle are 4, 5, 6. Can the triangle be a right triangle?

Name a big reason Europeans came to the "New World" during the fifteenth and sixteenth centuries?

Find the value of x 2x+4x=5

UT bisects WV. WV = ? A. SV B. 2 (SV) C. UT D. none of the above