Which number checks the equation 19 – m = 11? a. 8 b. 30 c. 7 d. 20

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

An ant travels at a constant rate of 30cm every 2 minutes. at what speed does the ant travel per minute

Is the ordered pair (-10, 7) a solution to the equation y = 17 – x? yes or no