Please include an explanation. the answer is 275 but i don’t know how to get to that answer.

The polynomial function of least degree with a leading coefficient of 1 is: f(x) = x3 + ax2 + bx + c

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

Tanya has $42 to spend at the dolphin island store. tshirts sell for $7 each and a pair of sunglases sells for $6.tanya buys 3 tshirts. how many pairs of sunglases can she buys with the amount of money she has left