-1) 2 4) Jessica and Arjun each improved their yards by planting rose bushes and shrubs. They bought
their supplies from the same store. Jessica spent $116 on 4 rose bushes and 11 shrubs. Arjun
spent $39 on 1 rose bush and 4 shrubs. Find the cost of one rose bush and the cost of one shrub

Suppose a man is heterozygous for heterochromia, an autosomal dominant disorder which causes two different‑colored eyes in an individual, produced 25‑offspring with his normal‑eyed wife. of their children, 15 were heterochromatic and 10 were‑normal. calculate the chi‑square value for this observation.

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.