Use the matrix tool to find the solution to the system of equations. Enter the z-value of the solution in the box below PLEASE HELP

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

100 points, hi, i’m not sure what to do here, the data doesn’t seem to be quadratic .? can anyone me, in advance

What other information do you need to prove triangle dac=bca by asa