Jonah studied for 3 hours longer than Sierra. he also studied for 3 times as many hours as William. these relationships are shown on the graphs below. which statement is true if Jonah studied for 6 hours? A) William studied for 3 hours longer than Sierra
B) Sierra studied 3 hours longer than William
C) William studied for 1 hour longer than Sierra
D) Sierra studied 1 hour longer than William

An airplane consumes fuel at a constant rate while flying through clear skies, and it consumes fuel at a rate of 64 gallons per minute while flying through rain clouds. let c represent the number of minutes the plane can fly through clear skies and r represent the number of minutes the plane can fly through rain clouds without consuming all of its fuel. 56c+64r < 900056c+64r< 9000 according to the inequality, at what rate does the airplane consume fuel while flying through clear skies, and how much fuel does it have before takeoff? the airplane consumes fuel at a rate of gallons per minute while flying through clear skies, and it has gallons of fuel before takeoff. does the airplane have enough fuel to fly for 60 minutes through clear skies and 90 minutes through rain clouds?

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

I'm confused on this could anyone me and show me what i need to do to solve it.