Which of the following activities are typically considered to be quarternary economic activities

l. retail sales
ll. banking
lll. research and development

l only
ll only
ll and ll only
ll and lll only
ll , ll, and lll

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

Which expression and diagram represent “renee biked four times as far this month as last month”?