Answer:
ANSWER
Step-by-step explanation:
6.40x+9.90(154-x)=1230.90
Solve for x
X=84 for child
154-84=70 for adults
Step-by-step explanation:
length = (2x + 3) units
width = (x - 7) units
Area = 2( length × width)
Area = 2( (2x + 3) × (x - 7) )
Area = 2( 2x² - 14x + 3x - 21)
Area = 2 ( 2x² -11x - 21)
Area = 4x² - 22x - 42
Answer: 21
Step-by-step explanation:
ahaha but for real it is 19