The sum of 3 times a number and 12 is 20

Missy took the act and was told her standard score (z-score) is –1. frank took the sat and was told his standard score (z-score) is –2. which student has a better chance of getting admitted to college based on their test score?

Which expression will have the same sum as 3_8 + 1/4?

X+ y = 5 ; x - y =3 solve using linear combination