Select the correct answer. The Venn diagram below shows the type of crops planted by 50 farmers in a particular area. (image below)

If a farmer is chosen at random, what is the probability that the farmer planted corn OR lettuce?

A. 4/5

B. 7/10

C. 3/10

D. 1/2

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why?