Gift wrapping boxes in the shape of an oblique rectangular prism if e. g. equals 10 FD equals 15 inches CH equals 8 inches in a F equals 10 inches what is the height of the prism

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

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! )