PLS ANSWER OMG ITS DUE RN U DONT HAVE TO EXPLAIN BUT IF U DO I WILL GIVE U BRAINLIEST
LOTS OF POINTS CUZ ITS A LOT OF WORK
PLS ANSWER

-5°F per hour

Step-by-step explanation:

If it dropped -30°F in 6 hours, divide by 6 on both sides, and you get -5°F per hour

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25