Answer and explanation:
The numerical expression 3(945−120)+312 describes the series of events that led to the number of followers on Zuberi's fitness blog
From the expression, Zuberi's followers were tripled after a loss of 120 followers from an initial 945 followers. He then had added followers of 312. Therefore Zuberi's current number of followers is 2787.
The answer is $320.
In order to solve this, you can start off by turning this word problem into an expression.
$70x → $70 per hour (x represents the amount of hours)
+40 → plus $40 for the call
Substitute the x for 4 and solve the equation.
70x+40
70(4)+40
280+40
320
The plumber charges $320 for 4 hours of work.
2/4=1/2=0.5 _____ Between 0 and 0.5 are an infinity of fractions. Ex: 0.1 (=1/10), 0.2 (=2/10), 0.2356 (=2356/10000) etc.