Solution:
Given:

when a = 4, substitute for a in the expression;

Therefore, if (a = 4), then

Hence, the answer is 16.
Answer:
3/10
Step-by-step explanation:
9-6=3
both fractions have the same denominator so they keep it
9/10 - 6/10 = 3/10
<h3>3/10 is also 0.33</h3>
Answer:
+15
Step-by-step explanation:
Let No be x
X÷-(3)=-5
X=+15
Law (-ve times -ve=+ve)
Answer:
Monomial; Standard form: 18a^2b^2
Step-by-step explanation:

Answer:
are you in 8B
Step-by-step explanation: