Each square below represents one whole. What percent is represented by the shaded area?

Pls help

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a. about 4 b. about 8 c. about 40 d. about 21

Ineed with number 6 , explain how to get 1978

Hurry which expression is equivalent to 3√x^5y?