Please I need help with this question

Express f(x)=(x-k)q(x)+r
F(x)=2x^3+x^2+x-3, k= -1

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42