After filling a gas tank the odometer read 27,8295After the next filling it read 28,1760. It took 17.5 gal to fill the tank How many miles per gallon did the driver get?​

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Don't know how to find x given these segment lengths

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?