Answer:
c
Step-by-step explanation:
because it has 3 different parts that cannot be combined
Jim's time is 5:50 and John's time is 6:40.
There is an app that could help u out a lot is called MathPapa
(3-4x)(8+3x)
= (3+-4x)(8+3x)
= (3)(8)+(3)(3x)+(-4x)(8)+(-4x)(3x)
= 24+9x-32x-12x^2
= -12x^2-23x+24
