the cost of a pen is 3 times the cost of a pencil and cost of a notebooks is four times that of a pen. If the cost of 6 pencils, two pens, and one notebook is $18, what is the cost of 1 pen?

Suppose you are given $800 to invest. in one sentence, state which type of interest-10% simple interest or 9.5% interest compounded monthly - offers the best investment for a 5 year term.

Solve 1/8 + 6a/5 = 3/8 + 2a/5 + 7/8

Find the product. (a2 + 2a + 1) (a + 1) a2 + 3a + 2 a3 + 3a2 + 3a + 1 a3 + 2a2 + a + 1 a3 + 3a2 + a + 1

Ran's doctor is monitoring his heart rate. The equation h=65t represents the relationship between the number of beats of his heart (h) and the number of minutes that have passed (t). If 120 seconds have passed, how many times has his heart beat?

How do I write 3 2/3 in a from of a decimal?

What is uniform motion in the subject physics

Which number represents the possibility of an event that is very likely to occur

Solve for b 5 (b-a) = r

If 10% of a number is 7, what is 80% of the number?

Write the equation of a circle M (7, - 10) and radius 2