A scientist has three small jars of chemicals to use for an experiment. Jar 1 has a mass of 0.62 gram. Jar 2 has a mass of 1.431 grams. Jar 3 has a mass of 0.5 gram. What is the total mass of the jars, in grams?

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?