20. simplify this expression: 13+ (-) = ?
o a.6
o b.-6
o c.-30
o d.30

Simplify this expression: 13 + (–12) – (–5) = ?

13 + (-12) - (-5) = 13 - 12 + 5 = 1 + 5 = 6

so your answer is A.6

A. 6

Step-by-step explanation:

Adding a negative is the same as subtracting.

Subtracting a negative is the same as adding.

13 + (-12) - (-5) =

= 13 - 12 + 5

= 1 + 5

= 6

a

step-by-step explanation:

jjddbdhid r

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation: