You want to buy a new car . the car averages 45 miles per gallon . it has a range of 675 miles on one tank of gas . how many gallons of gas will the car holder when the tank is full

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?