Chris has 8/20 of a sweet potato casserole left. He wants to cut it so that each serving is 1/10 of the casserole. How many pieces of casserole can he get out of the amount he has left? Please!!!

Is the square root of 4 plus the square root of 16 rational?

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0

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! )