-8(20 - 3b) - 5(6b - 4a)

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.