Ineed answers and steps too. .
additional maths

For this particular question, there are three specific rules that are necessary as well as the principle of reverting and obtaining logs to and from their exponential form.
Three specific rules:
1) 
2)
3) a⁰ = 1
Principle:
 ⇒ 

So:
Using rule 2, we can firstly write out the given logarithmic equation as:
log₇(5x) = log₇((3)⁴)
log₇(5x) = log₇(81)
Subtract log₇(81) from both sides to get:
log₇(5x) - log₇(81) = 0
Now, use rule 1 to get a single log:
log₇(5x/81) = 0
Use principle to convert this to exponential form:
7⁰ = 5x/81
Use rule 1 and solve for x:
5x/81 = 1
5x = 81
x = 81/5 = 16.2

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.