The missing factor is (a -1) I believe. If you foil (5a + 9)(a - 1) you would get 5a^2 + 4a - 9.
Answer:
Millie has 15 counters, and Sam has 8.
Step-by-step explanation:
s
<span>4(6) + 7 (5 - 3 )
= 24 + 7(2)
= 24 + 14
= 38
answer
</span><span>D: 38</span>
Answer:913
Step-by-step explanation: