A science teacher needs to choose 4 students from a class of 20 to go to the library to do some research. How many different groups can be selected?

A.) 3,060

B.) 104,976

C.) None are correct

D.) 73,440

A fountain is made up of two semicircles and a quarter circle. Find the perimeter of the fountain. If each of the semi circles have a diameter of 10ft

F (x) = x3 - 4x² - 6x - 32 at x = 6

About 8% of the U. S. population catches the flu each season. Assuming everyone has equal probability of catching the flu, about what are the odds of catching the flu in a given season?

The incomplete work of a student to solve an equation is shown below: Step 1: 3x + 12 = 3 Step 2:? Step 3: x = - 9 : 3 Step 4: x = - 3 What is the missing Step 2?

Work out 3 1/2 divided by 4 3/4

The circumstance of a circular region is shown. What type of number best describes the diameter of the circle? Explain your answer

Sora gave her this clue. Find Sora's age My age is 10 more than one tenth of one tenth of one tenth of 3,000

Connor found that 60% of 40 is the same as 25% of another number, n. What is the value of n?

Elisa's mom teaches at preschool. There is 1 teacher for every 12 students at the preschool. There are 276 students at the preschool. Elisa is setting up equivalent ratios to find the number of teachers at the preschool.

A recent online survey published that a hospital needs 9 nurses for every 45 patients. How many nurses a hospital would need in order to take care of 255 patients?