Step-by-step explanation:
4 times = 4x increased by 7 = 4x+7

Answer:

And if we use the permutation formula given by:

And replacing we got:

Step-by-step explanation:
For this problem we want to find the following expressionÑ

And if we use the permutation formula given by:

And replacing we got:

Answer:
24 ;] ;] ;]
Step-by-step explanation:
PRT means multiply p, r, and t
2000*0.08*2=320