If y varies directly with x and y = 4 when x = 12, then what is the value of y when x = 60?
5
20
300
180

How many solutions does the nonlinear system of equations graphed bellow have?

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?