You can use similar triangles to find the height of a tree. triangle abc is similar to triangle dec. what is the height of the tree? explain it too ^_^

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?