Ellen plans to leave an 18 percent tip withher 23.75 lunch bill

23.75/100*118=28.025

You divide by a 100 to find 1%

$4.27

I hope this helps!!!

47 - 90 = 43

43 - 180 = x

x = 137

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116