Answer:
Step-by-step explanation:
1. 2x - 28
2. 6x3 - 4x2 + 2x
3. x2 + 7x + 12
4. m2 - 4mn + 21n2
5. x2 - 9x + 18
38.48 cm. This is so because the equation to find circumference is

R squared.
5 and 1/4 times 3. 1/4 is equal to .25. So, 5.25 x 3 is...
15.75
Answer:
a.= 3.714
b.= 2.405
Step-by-step explanation:
a. 3.714 x 21 = 78
b. 2.405 x 37 = 89