Seven more than twice a number is 17

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount

Libby built a fence that was 56 \text { feet}56 feet long over 44 days. she built the same length of fence each day. how many inches of fence did libby build each day?