What type of money has value based on

How do i get the answer for 2/3 * 10/3

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Hannah reads at a constant rate of 33 pages every 88 minutes. write an equation that shows the relationship between pp, the number of pages she reads, and mm, the number of minutes she spends reading.