holly wants to make a frame for a painting. The painting is square and has area inches. The framing material costs $1.35 per inch. How much will she spend? You may assume that the framing material buys will be the exact amount she needs.

Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?