Anna is 6 more than twice courtney's age. courtney is c years old.

which equation can be used to find anna's age, a , in years? and

if anna is 30 years old, what is courtney's age?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

Find the measure of angle y. round your answer to the nearest hundredth. ( type the numerical answer only) a right triangle is shown with one leg measuring 5 and another leg measuring 14. an angle across from the leg measuring 5 is marked y degrees. numerical answers expected!