Help pls

Tina practice piano for 15 hours last month and 45 hours this month use multiplication to write a statement comparing me i was tina practice during the two months use addition to write a statement comparing the hours tina practice during the two months

How to use order of operation in 20 divide by 4 multiply 5 = 1

Alogical argument that is presented in graphical form using boxes and arrows is called?