Triangle PQR is an isosceles triangle with the coordinates P(2,3), 2(5, 10), and R(8,3). What is the area of triangle PQR?
A. 15 units2
B. 21 units2
C. 30 units2
D. 42 units2
E. 65 units2

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f