The figures below show a pattern.

i will give brainliest

find the expression that could be used to determine the number of squares in the nth figure.

= 3n + 1

Step-by-step explanation:

Th number of squares in each figure is

4, 7, 10, ....

The terms have a common difference, that is

7 - 4 = 10 - 7 = 3

The number of squares in the n th figure is

= a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 4 and d = 3, thus

= 4 + 3(n - 1) = 4 + 3n - 3 = 3n + 1

answer: ok

step-by-step explanation:

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer