15. a cell phone company charges $45 per
month for unlimited calls and $0.25 per
text message. another cell phone
company charges $0.15 per text
message and $70 per month for unlimited
calls.
b. solve the equation and interpret the
solution.

answer: 1 + 1 = 11

step-by-step explanation:

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

step-by-step explanation:

what is the figure? attach a picture.