If the system of equations\begin{align*} 3x+y&=a,\\
2x+5y&=2a,
\end{align*}has a solution $(x, y)$ when $x=2$, compute $a$.

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

[15 points, algebra 2]simplify the complex fraction and find the restrictions.