Which property is illustrated by the following equation? 3/5 + (-7/8) + 4/5 = 3/5 + 4/5 + (-7/8)
a. commutative property of addition
b. addition property of equality
c. associative property of addition
d. identity property of addition

7x+8y=-18, 4x-9y=-3 solve the system of equations

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets,x, and the number of student tickets,y. find the solution and explain what it means. i'll you if you me

Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form