a job pays $5000 for the first 6 months with a raise of $150 every 6 months after that. How much money, in dollars, willthe job pay for the second half of the fifth year?

Which value is not a solution of 8x^3 – 1 = 0

I'm confused on this could anyone me and show me what i need to do to solve it.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.