Please help i have so many timed quizzes Write an expression for the perimeter of the triangle shown below:
10x − 9

10x − 39

5.5x − 9

5.5x + 9

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

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