What is the factored form of the expression?

k2 – 9h2
a. (k + 3h)(k + 3h)

b. h2(k + 3)(k – 3)

c. (k + 3h)(k – 3h)

d. (k – 3h2)(k + 3)

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?

What function has a range {yly< 5}? question on picture above^