Add to negative 20 and multiply to 21

Based on this work, what is the solution to the system? (-4, - 4) (0, 0) no solution infinitely many solutions

The ratio of the number of adults to the number of students at prom how to be 110 last year there were 477 more students than adults at prom if the school is expecting the same attendance this year, how many adults have to attend the prom?

How many terms is in the expression 4x - 2x-6x - 2?

Wendy did a survey of four bird parks and wrote the following observations: bird park survey park number of blue birds total number of birds a 23 96 b 41 72 c 40 78 d 24 62 based on the survey, which park had the greatest percentage of blue birds

Hurry! Expand (2m+4) (m-3)

What is the discriminant of the polynomial below 9x^2-18x+9?

A country receives 3/4% of a state sales tax. About how much money would the country receive from the sale of a computer that cost $1,020?

What is the tangent of angle M? A. 12/35 B. 37/35 C. 12/37 D. 35/12

Write an equation to represent the relationship a number decreased by 12 is equal to 9 then solve the equation

Solve this problem 3.28 + 17 + 1.4 =