A. On a plan, the rectangular chalk board in a classroom is 8.4cm long and 3.8cm wide. Find the actual length and width of the chalk board if the
scale of the plan is 1:20.​

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

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.

Which pair of numbers is relatively prime? a. 105 and 128 b. 130 and 273 c. 205 and 350 d. 273 and 333