Answer:
Well you can either straight up subtract from the total degrees of a triangle using the sum of both of the given angles, which would equal x, or you can make an equation. I’ll do both.
180-78-51=51, x=51
78+51+x=180
129+x=180
x=180-129
x=51
Answer:
8b + 9 = 7
Step-by-step explanation:
The value of <u>a</u> is 2 and the value of <u>b</u> is 6.
<h3>Factoring</h3>
In math, factoring or factorization is used to write an algebraic expression in factors. There are some rules for factorization. One of them is a factor out a common term for example: x²-x= x(x-1), where x is a common term.
You should factor the given expression.

Read more about the factoring here:
brainly.com/question/11579257
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Answer: 22 degrees
Step-by-step explanation:
(
)= 21.62 nearest degree= 22
Answer: 60 devil offspring.
Step-by-step explanation:
The total number of devils in the Island is 80.
Out of this 80, 75% are offspring from the two previous breeding seasons.
This percentage in a whole number is what the question requires.
The number of offspring from previous seasons is:
= Percent of offspring from previous seasons * Total number of devils
= 75% * 80
= 60 devil offspring.