Answer:
B
Step-by-step explanation:
a-3>-7
collect like terms
a>-3-7
a>-10
690 because 86 is rounded up to 90
I think it is x² - 10x + 21 = 0.
Answer:
42
Step-by-step explanation:
Number of students whose favorite class is Math:
60*0.85=51
Number of students whose favorite class is Science:
15% is equal to 0.15.
60*0.15=9
Subtract number of students who like science from number of students who like math.
51-9=42
42 more students in the survey prefer math over science.
Im more then likely sure that it is dilation becuase you still have the same shape but with dilation you can make the shape smaller or bigger
