Will mark freddy has f dollars in his pocket. he takes $6.12 out and has $4.95 left. how many dollars did he have to begin with? hint: use a subtraction equation.

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

How many grams the dog will eat in 3 days?

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x