Hector must find the sum of 50+83+50 by using mental math. which property allows hector to simplify the equation to 50+83+50 and find an equivalent sum? associative property
commutative property
distributive property
identity property

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this.