(geometric proofs)
Given: 2c=d-4a;c=2a-3b;d=a+2b
Prove: b=7/5 a

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

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

What fraction is equivalent to 0.46464646··· a. 46⁄999 b. 46⁄100 c. 46⁄99 d. 23⁄50