Solve each system by subtracting

Match each equation with the operation you can use to solve for the variable. 1 subtract 10 2 divide by 10 3add 18 4add 10 5 subtact 18 6multiply by 5. 7multiply by 10. a 5 = 10p b p + 10 = 18 c p + 18 = 5 d 5p = 10

In the 30-60-90 triangle below side s has a length of and side r has a length

Can someone me do math because i am having a breakdown rn because i don’t get it