Please help me i don't understand

Landon wallin is an auto mechanic who wishes to start his own business. he will need $4400 to purchase tools and equipment. landon decides to finance the purchase with a 48-month fixed installment loan with an apr of 5.5%. a) determine landon's finance charge. b) determine landon's monthly payment.

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?