An experiment starts with 30 bacteria. After 4 hours, there are 135 bacteria. How long will it take for the bacteria population to reach 4,500? Round to the nearest tenth of an hour. You must show your work.

What are the coordinates of the vertex of the parabola y = x² + 4x - 6? ((4, - 6) (-2 - 10) (2, 6) (-4, 6)

Simplify the expression. 7y+3x+3-2y+6 What is the coefficient of y What is the constant

The relative growth rate for a certain type of bacteria population is 85% per hour. A small culture has formed and in just 2 hours the count shows to be 12,500 bacteria in the culture. What is the initial number of bacteria in the culture?

Are the equations m+3=-5 and m=-2 equivalent. Why?

What is the value of y in the solution to the following system of equations? 2x + y = - 4 5x + 3y = - 6 Answer for Blank 1:

Center c of the circle above has coordinates of (4, 3). what is the circumference of the circle?

The perimeter of a rectangle is 68 cm. The length is 4 cm more then it's width. Find the dimensions of the rectangle

Dave buys a baseball for $15 plus an 8% tax. Mel buys a football for $20 plus an 8$ tax. How much did each person pay?

Simplify (-80/-20) -4 4 -40 40

Suppose that the following relations are defined on the set A = {1, 2, 3, 4}. R1={ (2,2), (2,3), (2,4), (3,2), (3,3), (3,4) }, R2={ (1,1), (1,2), (2,1), (2,2), (3,3), (4,4) }, R3={ (2,4), (4,2) }, R4={ (1,2), (2,3), (3,4) }, R5=