Becca can type 90 words in 2 minutes. Based on this rate, which of the following statements is true?

Two lines that do not intersect are skew. always sometimes or never

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.