A box contains three cards. On one card there is a sun, on another card there is a question mark, and on the third card is an apple. Two cards are selected with replacement. What is the probability that 2 apples are selected?

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.