Which expression is most easily solved without the use of a calculator? (5.6 – 2.9) × 2.2
1.2 × (8.4 – 6.4)
(8.7 – 1) × 5.4
0.9 × (7.8 – 3.9)
im timed

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

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.