Express each difference as a mixed number

3 1/4 _ 1 7/8

E. coli bacteria have a doubling time of 20 minutes. Starting with 30 E. coli bacteria, how many will there be 6 hours later? Group of answer choices 7,864,410 7,864,320 7,864,452 7,864,821

Angel y Claudia están considerando contratar a un empleado que les ayude con el trabajo en el sibercafe han entrevistado a dos personas y el primero les dice k cobra $35 por hora y el segundo les dice que cobra $39 por hora (cual de los dos cobra

Marcus volunteered for 4 1/2 hours this week. Beth volunteered for 1 1/2 times as long as Marcus. For how many hours did Beth volunteer? Use words, numbers, or a model to justify your answer.

What is the area of square cover up that is 7 yards long?

You are enclosing a rectangular garden with 60 feet of ornamental fencing. the area of the garden is 200 square feet. what are the dimensions of the garden?

Witch value of x makes the equation x + 7 = 21 true?

Naomi has a neon tretra fish

The ratio of dogs to cats in the neighborhood was 3 to 7. If there was 42 dogs in the neighborhood, how many cats were there?

2x+3y=12 Complete the missing value in the solution to the equation.

Write a verbal expression for 4q