Pls help me 10 points

How to write 3 tenths and 5 tenths as a decimal

Mr. and mrs. wallace have decided to buy a car for $21,600. they finance $15,000 of it with a 5-year auto loan at 2.9% arp. what will be their monthly payment be? a. $268.20 b. $268.86 c. $269.54 d. $387.16 i need !

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1