Mathematicians

It is a reference to two triangles, ABC and DEF which may or may not be related in any way.

Exactly 4 times

4 and 1/2

It goes 303 times.

It is 9 7/9.

GCF(392, 48) = 8.

bigger

Fifty-four point nine two

Fifty-four and ninety-two hundredths

Fifty-four ninety-two

Not evenly because 306/4 = 76.5

9/10

It is: 9/10 of 20 = 18

Surface Area

The term "bana2" seems to be a stylized or informal way of writing "banana," with the use of the numeral "2" potentially representing the sound of the second syllable. In informal contexts, such as online chats or text messages, people often use numbers to replace sounds or letters. Therefore, "bana2" likely refers to the fruit "banana."

nine thousandths

7 times, remainder 61

Apply some force to the object.

One is an odd number which is neither a prime or composite number because it has only 1 factor which is itself.

It is 800!

It is five hundred forty six million nine hundred eighty thousand two hundred fourteen.

A finite set, with n elements has 2n subsets, including the empty set and itself. For infinite sets the number of subsets is the same order of infinity.

The HCF of the given numbers is 1

0.555 is equivalent to 55.5 ÷ 100.

Zero point eight three six

One
A thousand millions = a billion
A million millions = a trillion

180