The mason family's bill for dinner is $53.47. how much should they tip their server? (assuming the standard 15% tip)

Given f(x) = 17-x^2what is the average rate of change in f(x) over the interval [1, 5]?

Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.