I needs some help on this

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250

Agrasshopper weighs 0.89 grams. express the grasshopper’s weight in scientific notation.