I need help how is 5 + 5 + 5= 550

If lmn=xyz, which congruences are true by cpctc? check all that apply

An apartment has a replacement cost of $950,000 and contents valued at $1,450,000. it has a classification of a and a territory rating of 3. find the annual premium a) $10,185 b) $9,230 c) $3,155 d) $13,830

Use the distributive law to multiply. 3(4x + 5y + 6)