Why does a mutation not always lead to a visable change

Identify the y-intercept of the line below. 4x + 9y = 252

in a history class, the girl to boy ratio is 9 to 5. if there is a total of 70 students how many boys is there

Solve for t 2.25t + 5 = 13.5t + 14

A randomly generated list of numbers from 0 to 4 is being used to simulate an event, with the numbers 3 and 4 representing a success. What is the estimated probability of a success? A. 25% B. 40% C. 75% D. 60%

What is the mean absolute deviation of 13,15,9,35,25

Two researchers are studying the decline of orangutan populations. In one study, a population of 784 orangutans is expected to decrease at a rate of 25 orangutans per year.

What is the word form of 7.003

Are the two equations - 6 + y = 2x and 2y - 4x = 12 dependent?

Which number is one-third of the way between 2.2 and 8.5? 5.35 3.15 4.3 3.775 I have no idea how to do this.

On call = 3.5 hours:$10 Talk Time = 1/2 hour: $1.25 Wich company offers the best deal? explain your answer