For diffusion to occur, which condition must be met?

O A concentration gradient must exist,

O A hypotonic external environment is required,

A hypertonic external environment is required.

Dynamic equilibrium must exist.

Would you rather have a penny today, that doubled everyday for a month, or $1 million today? How much will you have in each account at the end of the month?

What is the value of (8 - 3) !? 24 120 40,314 6

Solve to following equation for x: 6 (4x + 5) = 3 (x + 8) + 3

An object is thrown upward from the top of an 80 -foot building with an initial velocity of 64 feet per second. The height h of the object after t seconds is given by the quadratic equation h equals negative 16 t squared plus 64 t plus 80.

Square foot of 10by 10

It took Lou 2 1/2 gallons of paint to paint one fence. How many gallons of paint will it take Lou to paint 6 fences that are the same size? Express your answer in simplest form.

The ratio of the number of boys to the number of girls in a school is 4:5 there are 95 girls in the school work out the total number of students in the school

What is the domain and range of f (x) = -3/4√x-1+4

What is 4.2X-1.4Y=2.1-2X

Factor x2 - 8x + 15. Which pair of numbers has a product of ac and a sum of b?