Answer:
90%
Step-by-step explanation:
So Sally gets 18/20 of the questions correct then you need to make the denominator of the fraction to 100 which makes a percent. So you multiply both the numerator and denominator by 5:
90/100
which is equal to 90%
Hope this helps!
<u>From the given data</u>
<u>93% of the bar is silver :</u>
<u>Therefore, 6.51 Kg of Silver is there in the bar.</u>
16.1157
hohohhohohohoho x^162