To add fractions, find the LCD and then combine.
Exact form:
9/2
Decimal form:
4.5
Mixed number form:
4 1/2
So, answer is
4 1/2
Hope this helps!
False, mutations occur at varying rates
we are given

we can solve for x
We can isolate x
step-1: Multiply both sides by b/a


step-2:Add 12 both sides


step-3: combine right side

step-4:Divide both sides by 2
..............Answer
The simplified form of the expression is 3
<h3>Simplifying an Expression</h3>
From the question, we are to simplify the given expression
The given expression is
53 -2(16/8 * 16-7)
Simplifying
Using BODMAS
53 -2(16/8 × 16-7)
53 -2(2 × 16-7)
53 -2(32-7)
53 -2(25)
53 -50
= 3
Hence, the simplified form of the expression is 3
Learn more on Simplifying an Expression here: brainly.com/question/3622770
#SPJ1