What is the probability of picking an ace from a standard deck of 52 cards?

How do i do this using elimination 2x+3y=12 x-y=6

Find the area of the triangle shown 3 by 6

Find the percent cost of the total spent on each equipment $36, fees $158, transportation $59 a. 14%, 62%, 23% b. 15%, 60%, 35% c. 10%, 70%, 20% d. 11%, 62%, 27%