A train has one engine and six train cars. Find the total number of ways an engineer can arrange the train. (The engine must be first.)

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.