This is nothing you need to solve, I just need a refresher about this type of math. For some reason I can't remember this right now. Can you please help? So if I have 2x^2 + 1x, isn't there technically an exponent of 1 above the 1x?
(I'm trying to factor and solve the equation: 2x^2 + x - 21 = 0, if that helps.)

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a.m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum.how many seats does the larger van have?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?