Reduce the index of the artical and exponent with 2 and get 3x18a. Calculate the product and get 54a.
Answer:
I guess option c is the answer
Usually, this means just going with the flow, not actually doing the work, just look ing like you are. hoped this helped
Graph B.
Because y< so shade underneath the line
And because it is less then not less than or equal to then the line is dashed.
Step-by-step explanation:
a = age of Alex
l = age of Lucy
m = age of Megan
a + l + m = 126
l = 3a
l = m + 7
=>
a = l/3
m = l - 7
we are using that in the first equation :
l/3 + l + l - 7 = 126
l + 3l + 3l - 21 = 378
7l = 357
l = 357/7 = 51
a = l/3 = 51/3 = 17
m = l - 7 = 51 - 7 = 44
the ratio of the age of Lucy to Alex to Megan is
51 : 17 : 44