Answer:
3a - 21
Step-by-step explanation:
3 ( a - 7 )
= 3 ( a ) + 3 ( - 7 )
= 3a - 21
Answer:
just substitute n for 1, then 2, then 3, then 4, then 5 and write your final values equal to them.
Step-by-step explanation:
The answer to this question is B
6 x 3 y − 9 x 3 y 2 + 12 x 4 y 3
Step-by-step explanation:
I've had this before
Triangle: 0.5 * 5* 4 = 10 cm^2
Square : 5*5=25 cm^2
25 + 10 =35 cm^2
