On july 31, oscar checked out of the sandy beach hotel after spending four nights. the cost of the room was $76.90 per night. he wrote a check to pay for his four-night stay. what was the total amount of his check?

$307.60

Step-by-step explanation:

multiple $76.90 by the 4 nights he stayed. $76.90×4

181.044m²

Step-by-step explanation:

First, work of the surface area of the base (bottom rectangle area)

Formula : base × height

6×2=12m²

Formula : LW+L

For the 8.8 bit i got 83.734 (sorry i can't be asked right now to put down all my working out)

and for the 9 i got 85.31

add them all together we get 181.044