Company collected data for the number o text messages sont and received using a bet message application since Oktober 2013. The table shows the number of text messages
Dan TERIZIV over time can be modeled by a quadratic hunction,

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16