If I charged 30$ a hair cut the whole year how many times would each customer have to come in to get 17,510$

What is the missing constant term in the perfect square that starts with x^2 -20x

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry