What is the sum of interior angles of a triangle

mary spent a total of $321.89 for a party. she spent $200.45 on food, plus an additional $30.36 for each hour of the party how long was the party

What is the solution 1/x = x+3/2x^2

What is a quadratic?

In a certain company, 30 percent of the men and 20 percent of the women attend night school. if 40 percent of all employees are men, what percent of all the employees attend night school?

Solve x2 + 20x + 100 = 36 for x. a. x = - 16 or x = - 4 b. x = - 10 c. x = - 8 d. x = 4 or x = 16

If a+b=12 and a-b = 8, what is the value of a^2+b^2?

In which quadrant is (1/2, - 1.8) ?

Is 3/5 terminating number

Solve for x of the triangle x^2=4x9

Solve the following equation for m - 2m+7=11