What percent is represented by the shaded portion of this 10 × 10 grid? A grid model has 100 squares. 40 squares are shaded

1. 4/100
2. 40/100
3. 4%
4. 40%

How many bananas are in a fruit bowl that has 200 total apples and bananas if there are 31 bananas for every 93 apples

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25

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.