Multiple choice: state any restrictions on the variables.
a. y ≠ 3
b. no restrictions are needed
c. y ≠ –1
d. y ≠ 1

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

The system of equations graphed below has how many solutions? y = 2x + 2

The conversion factor relating feet to meters is 1 ft=0.305 m. keep in mind that when using conversion factors, you want to make sure that like units cancel leaving you with the units you need. you have been told that a certain house is 164 m2 in area. how much is this in square feet?