Shamus owes his parents $162 he pays them 60% of the $45 he earns as a soccer referee each week. how many weeks will it take shamus to pay all of the money he owes his parents?

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.

The measure of an angle is 117°. what is the measure of a supplementary angle?

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"