(i know the answers i just don't get why)

1. a bag of grass seeds weighed 1/8 of a gram. that was enough to cover 1/6 of a lawn with seed. how many bags would it take to completely cover the lawn? 6 bags

2. a small can of pain was 1/5 of a liter. that was enough to fill 1/4 of a paint sprayer. how many cans would it take to completely fill the sprayer? 4 cans

3. an old potato outputs 1/3 of a volt of electricity, which is 1/3 the amount of power needed for a small lightbulb. how many potatoes would you need to power the lightbulb? 3 potatoes

In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000

On a piece of paper, graph y< x-1. then determine which answer choicematches the graph you drew.13. z3. 2(3.290-1)

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.