Given: x + y = 10.

If x = - 21, what is y?

A. 11

B. - 31

C. 31

What is the total cost of 1.9 cubic meters of soil if it sells for $40

Writing algebraic expressions for sequences

What is Y=-3x^2+24x-41 in vertex form

2a=8 A+b=2 Substitution method

What is 17/50 in a percent and decimal

Prove that: 25^9+5^17 is divisible by 30

James has mapped his seat and his teacher's seat on the coordinate plane at (0,10) and (-4,6). Find the distance between their seats. A. 4√ 17 units B. 16 units C. 4√ 2 units D. 4 units

What is the sum of 90 minutes and 50 minutes? 130 minutes 1 hour, 40 minutes 2 hours 2 hours, 20 minutes

The side lengths of triangle RST are 5, 12, and 13. Which set of ordered pairs form a triangle that is congruent to triangle RST?

Write an inequality that represents the description and then solve. Dave has $15 to spend on an $8 book and two birthday cards (C) for his friends. How much can he spend on each card if he buys the same card for each friend?