Work backwards!
282 -12 =270
270/3.6 = 75
75 + 6 =81
81 * 3= 243
He started with 243
Pemdas
parenthasees
exponenes (includes square root)
mult or division from left to right
add or subtract from left to right
so parenthasees are good
multiply first and vidied(-6 times 4)+(-7 times 3)=-24-21
then add or subtract
-24-21=-45
Answer:
5 hours
Step-by-step explanation:
(53-13)÷8
53-13=40
40÷8=5
She worked 5 hours I hope this helped. :)