4.5÷6=
estimate the quotient

We are given the expression:

4.5 / 6

Simplifying the given expression:

We can rewrite 4.5 as 4/10:

Since 45 and 6 have a common factor: 3

The 3 in the numerator and the denominator will cancel out:

We know that 15/2 is 7.5

0.75

Hence, the quotient of the expression: 4.5/6 is 0.75

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.