\begin{aligned} &-x+4y=-9 &y=-2x +6 \end{aligned}


−x+4y=−9
y=−2x+6


Is (2,3)(2,3)left parenthesis, 2, comma, 3, right parenthesis a solution of the system?

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)

Is a positive integer raised to a negative power always positive