Answer:
Expression is 2(l+w)
Step-by-step explanation:
l is length and w is width
30 miles per hour
or, 30 miles per 60 minutes /:30
=> 1 mile per 2 minutes
50 miles => 2*50 minutes=100 minutes
100 minutes=60minutes+40minutes=An hour and 40 minutes
Please don’t click link it’s a hacker !!!
The value of any log function approaches negative infinity as the argument approaches zero from above.

so.. .whatever those amounts are, of "x" and "y", for the mixture,
they must add up to 100 grams, or x + y = 100
and the titanium percentage of that sum, must yield a 13 grams of titanium on those 100 grams
thus

do the substitution, and solve for "x",
what's "y" amount? well, y = 100 - x