Agym owner has some blue weights and some pink weights. the blue weights are 10 kilograms each, and the pink weights are 3 kilograms each. the owner has 7 weights, and they weigh 49 kilograms in all. how many of each color weight does he have?

blue weights

pink weights

Which expression is equivalent to 2^4y^3

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%