Use substitution to solve the system of equations. y = −2x x − 3y = 21 a) (3, −6) b) (3, 4) c) (−2, −6) d) (−6, 12)

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)