Ms. Johnston was accepting signed permission slips for two days. She received signed permission slips from 1/4 of her students on the first day. Another 11/20 handed in their permission slips on the second day. Which statement about the total number of permission slips returned is true?

The equation m = 19.32v can be used to find the mass m in grams of a pure gold coin with volume v in cubic centimeters. carl has a coin with a mass of 37.8 grams. the coun's volume is 2.1 cubic centimeters. could the coin be pure gold? explain your reasoning. whoever answers this correctly gets marked brainliest! this is also worth a decent amount of points than normal questions!