You are about to leave on vacation and realize you forgot to pack socks. You race back to your room but the lights are off and you can't see the color of the socks in the drawer. The socks are all mixed up but you know that you have 10 pair of white socks, 10 pair of black socks, and 11 pair of blue socks. How many individual socks do you need to pull out of the drawer to be sure you have at least 1 matching pair?

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?