Ms. Cathy bought a package of pens. Out of every 10pens , 9 are black. If there are 70 pens in the pack, what fraction of the pens in the pack are black? What percent of the pens in the pack are black.

Is 25 mg lighter or heavier than 25 cg

State the greatest common factor of the given trinomial. 6xy + 9xy2 - 18x4y

you buy a Lily and an African Violet on the same day you were instructed to water the Lily every 4th day and water The Violet every 7th day after taking them home, how can you use this answer to determine each of the next days you will water the

The value of the expression when x = 5 is

How to find the centroid of a cone with radius r and height h?

What is the quotient when root 1500 is divided by 2 root 15

1 eighth the sum of 23 and 17

What is the median of the following data set? {6, 3, 9, 1, 7}

The function f (x) = 18000 (0.52) x represents the value in dollars of a vehicle x years after it has been purchased new. What is the average rate of change in value per year between years 4 and 8? -$18000/year -$1219.87/year -$304.97/year -$0.

4x-6y=2 3x+5y=11 Jonas used the linear combination method to solve the equation shown. He multiplied the first equation by 3, and the second equation by another number to eliminate the x terms. What number did Jonas multiply the second equation by?