In a triangle abc, tan (a) = 20/21. find sin (a) and cos (a)

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

Nicole is making carrot bread she needs 5 cups of carrots for 2 cups of sugar. what is the ratio of cups of sugar to cups of carrots that nicole will need? write the ration in three different ways

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?