Find the area of the composite figure 7m 5m 4m 3m

Can you draw an isosceles triangle with only one 80 degree angle?

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x