You and your sister go to the store. You buy 3 erasers for a $1.00 . Your sister buys 4 erasers for $1.25 . Explain who gets the better deal .

Your sister

Step-by-step explanation:

To determine those with better deal we will have to do some calculations

So let's start

You bought the 3 erasers for$1.00

So we will have to determine the amount you bought 1

3 erasers=$1.0

1 eraser=x

Cross multiply

3x=1

X=1/3

X=0.33333

Your sister bought 4 erasers for $1.25

So 1 eraser=x

Cross multiply

4x=1.25

X=1.25/4

X=0.3125

So we will have to compare the two prices and we will discover that your sister gets the better deal

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft