Solve the system of equations by elimination and identify a possible first step of the elimination method for the system.

2x - 5y = 11
3x + 2y = 7

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y

The volume of a spherical hot air balloon v(r) = 4 3 ? r3 changes as its radius changes. the radius is a function of time given by r(t) = 3t. find the instantaneous rate of change of the volume with respect to t at t = 2.