I hope i dont any mistake :p tell me if u dont understand :)
X is the number
sum means add
sum of half a number and 4 means
(x/2)+4
result is -16
(x/2)+4=-16
minus 4 both sides
x/2=-20
times 2 both sides
x=-40
the number is -40
200 / 8 = 25
scale factor is 1:25 or 0.04
Step-by-step explanation:
Find the difference
3,621 - 1,836 = 1,785
They payed $1,785 dollars in the second installment.
Jacob must now invest $10,712,72 to have $50,000 for the party.