Answer:
A
Step-by-step explanation:
The volume (V) of a pyramid is
V = 
area of base × perpendicular height (h)
area of square base = 4² = 16 and h = 4, hence
V = × 16 × 4 = 
= 21 ft³
Answer:
4th is correct answer. 1, 2, 3 not correct you can check the exponents properties
After one week, Jacob has earned $80 from babysitting, so his change is an increase of $80. The next week, he spends $85, so he experiences a decrease of $85. Over the two weeks, his overall change is $80-$85=-$5, or a decrease of $5.
You can name a vector<span> by its length and direction</span>
