C6: function notation
if f(x) = 3x2 – 8x + 3 and g(x) = – 5x – 8
find the following:
a) f(4) +8(-5)
b) if 8(x) = 47, find x.
what’s the answer for question a and question b ?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

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 (monthly car loan payment per $1,000 borrowed) i need !

Is this a polynomial function? i need to know asap