The purity of gold is listed in karats. Refer to the table. If a necklace is 75% gold, what karat is it? Karat 24 is 100% pure gold. Karat 12 is 50% pure gold

Jan accidently ran 7 minutes longer than he was supposed to. write an expression for the total amount of time jan ran if she was supposed to run m minutes

Mr. jones determined that the equation y = 98 - 16/5 x could be used to predict his students' unit test scores, based on the number of days, x, a student was absent during the unit. what was the meaning of the y-intercept of the function? (by the way the 16/5 is a )

Ireally don't understand this, i'm really an idiot but i want to know how to figure this out. !