What is the difference between number system and scientific notation in math???

Jason went to an arcade to play video games. he paid $2 for every 11 tokens he bought. he spent a total of $16 on tokens. which equation can be used to determine,t, the number lf tokens jason bought

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

Describe how making an ‘and’ compound sentence effects your solution set