Question

Help me with 20 b, and 23, please! Thank you!

Answer 1

20b.) -24˚C;

23.) -2820 feet.

Explanation:

20b.) 12-4=8; 0-8×3=-24

23.) 0-7×60×2=-840;

-840+4×60×3=-120;

-120-9×60×5=-2820 feet