On a 30 question test, Janice answered four-fifths of the questions correctly- Which of the following is the number of questions she answered correctly?
A.26
B.24
C.38
D.25

Suppose a triangle has two sides of length 32 and 35, and that the angle between these two sides is 120°. which equation should you solve to find the length of the third side of the triangle?

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.