For each question, you have to:
1) Decide which formula to use.
2) Plug each number that's given into the right place in the formula.
3) Solve.
Here's how to do #1:
It's asking for circumference, so use the C = 2*pi*r formula.
Plug in "6" for the radius: C...

A dihybrid cross maps out the possible combinations of two selected traits in offspring from two parent organisms. This is done graphically on a Punnett Square.
For example, if two pea plants are crossed - and we choose to look at the traits of height and flower color - we need to start...

Since 6/3=2, you can combine the "a" terms. 10ab + (a2b)/5 - a + (6/3)a =
Look for common denominator. It's 5. (50/5)ab + (1/5)(a2b) + (5/5)a =
Combine all terms in the numerator and divide by common denominator. (50ab...