A baby weights 4kg when born. After 6 months it weighs m kg. Write an expression for the weight gain of the baby over 6 months.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?