Answer:
Let the number be x.
Subtract 4 from both sides:
Subtract 12x from both sides:
Divide both sides by -9:
The number is 2.
60 sold
Step-by-step explanation:
4/5 of 75 new houses sold this year comes out to 60 new houses sold. Just multiply the total (75 houses) by this fraction (4/5).
P=44.6
P=a+b+√a^2+b^2=11+15+√11^2+15^2≈44.6
47 and 2/5
The second one