The ratio of red collars to black collars sold at one store is 9 to 10. In one month 30 black collars were sold. Is 57 a reasonable number for the total number of red and black collars sold that month. Explain

Which expression is correctly simplified using the laws of exponents? a. (a^0 b^3) = b^12 b. (a^4 b^2) ^3 = a^7 b^5 c. (a^2) ^-3 = (a^9) over over (b^3) (b^6) d.

How many subsets with an odd number of elements does a set with 10 elements have?

What number is 9/21 of 1260?

5-112. copy each expression below and simplify it using the order of operation

90 is 80% what is the value?

The base of a rectangle has a length of 4 inches and a diagonal has a length of 5 inches, Find the area of the rectangle

A ball is thrown from an initial height of 7 feet with an initial upward velocity of 28/fts. The ball's height h (in feet) after t seconds is given by the following. = h+7-28t16t2 Find all values of t for which the ball's height is 15 feet.

The sum of two twin primes is 60. What are the numbers

The product BxA equals

You have 90 minutes to complete atleast 18 chemistry and math problems. It takes 5 minutes to complet a chemistry problem and 4 minutes for each math problem. Which is a possible solution to this equation?