Answer:
1) no
2)yes
3)yes
4)yes
Step-by-step explanation:
50,000 because when the number next to the main number is below 5 then you round down...if it is 5 or above then you round up
2.54 cm/ 1 in = 60 in/ 1. Then you would multiply 2.54 by 60 and get 152.4 cm
X^2(2y+5)=240
x^2(2(5)+5)=240
x^2+(10+5)=240
x^2+15=240
minus 15 both sides
x^2=225
sqrt both sides
x=15