Write a variable expression to describe the rule of each progression then calculate the term 20 or 20 term 1.) 6,12,18,24,...
2.)3,6,9,12,...
3.)1,5,9,13...​

cosine

step-by-step explanation:

it’s supposed to be -4+45=41

step-by-step explanation:

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x