Cr and ds are perpendiculars dropped from ab to pq , and ab is perpendicular to cr and ds . if cr = ds, which statement must be true?
a.) m∠rcd = m∠sdb ÷ 2
b.) m∠rcd = m∠acd
c.) m∠rcd = m∠acd ÷ 2
d.) m∠rcd = m∠acd ÷ 3
e.) m∠rcd = m∠acd × 2

Select all the correct answers.natalie buys a new car. in the first month, the odometer on the car records 800 miles. from past experience, she expects to drive 900 miles per monthselect all the functions that can be used to find the number of miles, f(n), recorded on the odometer after n months.of(n) = 800n + 100f(n) = 9001 - 100f(n) = 900n + 800(1) = 800; }(n) = f(n - 1) + 900, for n > 2f(1) = 800; 1(n) = f(n − 1) + 100, for n > 2(1) = 900; }(n) = f(n - 1) + 800, for n > 2

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.