Sorry for the delay!
Let x = charge before tax in 1st city, and y = charge before tax in 2nd city
y = $1500 + x
4/100x => tax in first city
3.5/100y => tax in second city
0.04x + 0.035y = $408.75
We have the following system of equations to solve:

So the hotel charge before tax in city 1 = $4750, and the hotel charge before tax in city 2 = $6250
Since Abby moved faster, she weighs less than Ben.
The ratio between their speeds should be the same as the ratio between their weights.
So, Ben weighs 52.5*1.59/1.22 = 68.422kg
They should have a total of steps as 20
⓵ You need to solve the left side first in order to isolate the × and find it’s value :
-7× + 6 = 27
-6 -6
↓
-7× = 21
÷-7 ÷-7
↓
× = -3
If you find it too difficult to divide a number by a negative, just divide 21 by 7 and always remember that when dividing, when the signs are different the answer is negative. So knowing that you could just divide 21 by 7, which is 3, and add a negative sign in front!
I hope this helped, if there’s anything let me know! ☻
Hi!
You need to multiply to remove the variable from the denominator.
The answer is m=-9