What is the seventh term of the sequence 1, 3, 9, 27,

Using elimination, what is -4x+2y=-12 4x+8y=-24

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

The graph shows the amount of money noah earned based on the number of lawns he cut. which list shows the dependent quantities in the graph?