Help it's for a grade! please

30(0.5b + 3.75)Asuming that the 'hardware' is not a one time cost, that'll also be included in the expression, so it is now along the lines of 30 (f(x) + 3.75). We also are told that each bead costs .5, we dont need to know the number as that is factored in during the order, and assuming that she buys the same amount of beads for each necklace, we'll be using 0.5b in the equation. Now the expression is 30 (0.5b + 3.75) to work out the cost of 30 necklaces.

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

when multiplying or dividing by a negative on both sides you have to flip the inequality sign. this rule only applies to multiplying or dividing by a negative number in inequality equations. this rule is really important.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice