if y varies directly as x,find the constant of variation and the direct variation equation for the situation y=21[..]

In a package of pens there are 2 red, 7 blue, 3 black, and 3 purple pens. If Tara randomly grabbed a pen, what is[..]

Chad bought a computer at a local electronics store. If the computer cost $788.00, and tax was 8%, how much did Chad[..]

A theater has 39 seeats in the first row, 42 seats in the second row, 45 seats in the third row; and so on. (a)Can[..]

There is a sign on highway 26 returning from Mt. Hood that says "6% downgrade for the next five miles." A) What[..]

the simple interest "i" earned over a particular period of time varies jointly as the principal "p" and rate "r",[..]

A walk 4feet wide surrounds a rectangle 9 feet long and 15 feet wide. Find the cost of carpeting the walk at $6 per[..]

Amy's restaurant had budgeted at most $60 to spend this month on gourmet coffee. All international blends cost[..]

katia earned $12000 last years by giving tennis lesson. she invested part at 3% simple intrest and the rest at 4%[..]

Mrs.Pascal told her students that she had placed a total of 36 marbles into a container and thate Each of the[..]