Answer:
2
Step-by-step explanation:
8% is the same thing as multiplying something by 0.08.
25 x 0.08 = 2
Hope this helps :)
0.7 is 5% of the number 14.
16 people would be at the dinner because Jim and Sarah invited 7 friends and each friend brought 1 guest, so you do 7*2=14 and the 14 + Jim and Sarah=16 people.
Multiply the number by itself zero times , it's the only number which can be multiplied by any other number without changing that other number.
The topics you should learn are equating denominators and fractions. This is summing up simple fractions.
So we have to make denominators' numbers the same in order to sum up them all (we can sum fractions if the denominators are the same) , and we did it by cross product (that thing on the picture)
Equating by lcm (least common multiple) is the easiest way, because you might see bigger numbers on other questions, and cross product will bring much bigger numbers, so this technic might confuse you.
By the way lcm of 4 and 5 is already 20
Hope it helps!