Someone know how to do this Im very confusing about how to do it

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.