In a lab, a substance was heated by 6 °C each hour for 60 hours. What was the total change
in temperature?

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

Draw a tape diagram to represent each situation. for some of the situations, you need to decide what to represent with a variable andre bakes 9 pans of brownies. he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

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