A person standing 130 feet away from the foot of a tall building must look up at an

angle of 30° to see the top of the building.

There is a radio antenna on the top of the

building. The angle of elevation of the top of

the radio antenna is 45°.

Write an equation to determine the

height of the radio antenna.

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.