A+5 = 1 side, so the perimeter is 3(a+5) or P = 3a+15
Answer:
2k
Step-by-step explanation:
3k and -k are both like terms, so you can combine them. Adding opposite signs works in the same way as subtraction, so you can rewrite the expression as 3k-k, which is 2k.
Answer:
Step-by-step explanation:
10(5)=50
