Three students each examine the
system of linear equations shown.
8x + 4y= 16
8x +2y=8
Caleb says there is exactly one solution.
Jeremy says there is no solution. Kim
says there are infinitely many solutions.
Which student is correct?
Provide mathematical reasoning to
support your answer.
Answer in complete sentences.

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.

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?