What is the factored form of the expression? t2 – 81 a. (t + 9)(t – 9) b. (t + 81)(t – 1) c. (t + 9)2 d. (t – 9)2

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.