N(n+1)(n+2)(n+3) is a multiple of 4

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

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