Four square tiles, each of side 12 cm are used to make a bigger tile. Find the perimeter of the larger tile.

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?

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)