Ajeweler has 5 rings, each weighing 18 g, made of an alloy of 10% silver and 90% gold. she decides to melt down the rings and add enough silver to reduce the gold content to 75%. how much silver should she add?

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

For the chance to be team captain, the numbers 1-30 are put in a hat and you get two chances to pick a number, without replacement. which formula correctly shows how to find the probability that you choose the number 1 and then 2?

Find the measurement of angle b in the following triangle