Subtract. (x^2+43x+10)−(−10x^2−5x+10) express the answer in standard form.

When y’all answer can y’all explain too !

The width of a rectangle is half as long as the length. the rectangle has an area of 18 square feet. what are the length and width of the rectangle?

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?