Maria is 5 years older than her younger sister. If Maria will be n years after 7 years, find their total age in terms of n.

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

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

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x