Answer:
Algebra
Step-by-step explanation:
48. 40% of 80 is 32. 80-32=48. Which means there are 32 boys and 48 girls.
We will use formula for circumference of circle:
lets name it as O
O = 2*r * pi
when we express r in this formula we get:
O = 2*2.2*pi
O = 4.4*pi
From this we can see that for given radius, answer is 4.4. The formula only depends on pi and that is what "in terms of pi" means.
Answer:
630
Step-by-step explanation:
(-21) × (-30)
21×30 Since 2 negatives multiplied to make a positive
Answer is 630
