Witch interval contains a local maximum for this function

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle?