No, the product is not valid. The number of columns of

(five) should match the number of rows of

(four).
Answer:
x=-21/47
Step-by-step explanation:
Jamie has earned $80 +75 +145 +250 +80 = $630 so far this week. He needs to earn an additional $875 -630 = $245 to pay his bills.
If Jamie only has one last task, he must earn $245 on that task to pay his bills this week.
I think it will be w+15 because if you write 15w that means 15×w and the others don't make sense..