If f(x)=x+1 and g(x)= 3x+4 then f(g(2)) - g(f(2))=

Rick is on a bicycle trip. every 4 days he bikes 230 km. if rick keeps this same pace for 16 days, how many kilometers will he bike?

"what factors influence the absorption of sunlight at earth's surface? "

How do refracting telescopes magnify a far away image? a. by directing light beams to meet at a focal point b. by absorbing light beams’ wavelengths c. by forcing light beams to change direction d. by measuring light beams’ velocity