Plz help asap answer 1-5 plz

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Landon wrote that 3−2.6=4. which statement about his answer is true?

Which term below correctly completes the following sentence? if a function has a vertical asymptote at a certain x value, then the function is what at that value