Harold made the conjecture that the sum of any two prime numbers is a composite number.
which equation is a counterexample to his conjecture?
a.
17 + 2 = 19
b.
11 + 5 = 16
c.
3 + 10 = 13
d.
4 + 1 = 5

What is the y intercept of f(x)=(1/2)^x?

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

Consider the function f(x)=-5x+3 what is f(-2)