Im not sure about the second one, but for the first one, Alex’s height is 167.64 cm. :)
Answer:
Option D
Step-by-step explanation:


Hope this helps
Answer:
2x^2 is not equivalent
Step-by-step explanation:
3x = 3x
2x^2 = 2x^2
X(2+1) = 3x
2x + x = 3x
the odd one out is 2x^2
Answer:
Given:
x-y=-4
2x+y=4
Step-by-step explanation:
x-y=-4
2x+y=4
add both the equation, we get
⇒ x-y=-4
2x+y=4
⇒3x=-4+4
⇒3x=0
⇒x=0
∴ to find the value of y, put the value of x in any one equation
⇒x-y=-4
⇒0-y=-4
⇒-y=-4
⇒y=4
∴ x=0, y=4
Answer:
easy, it traveled/swam 75.6 miles
Step-by-step explanation:
16.8 x 4.5= 75.6
hope this helps