4.
The weekly salary of a shoe salesman can be modeled using the linear function f(x) - 8x + 75
where x is the number of pairs of shoes sold a
and f(x) is the salary the salesman earns.

What is the standard form of -5x^2+2x^4-11+x^3+3x

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

The computer that controls a bank's automatic teller machine crashes a mean of 0.6 times per day. what is the probability that, in any seven-day week, the computer will crash less than 5 times? round your answer to four decimal places