Amobile phone company uses the formula c = 10t + 20m to calculate the total cost of a bill. c is the total cost of the bill in pence. t is the number of text messages. m is the number of minutes of call time. calculate the total cost for 150 texts and 50 minutes of call time.

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

What is the ratio of the length of an object in yards to the length of the same object in miles?

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities