Answer:
99
Step-by-step explanation:
For the first one it’s 9490 & for the second it’s 860
You plug in 2x + 4 into the y for the other equation (3x +y ) and solve for it
Answer:

Step-by-step explanation:
Given equation:

Solving for unknown variable 
Adding 8 both sides by additive property of equality.


Squaring both sides to remove the square root.


Adding 5 both sides by additive property of equality.


Dividing both sides by 6 to isolate 

∴ 
Answer:
$75
Step-by-step explanation:
Question:Mr Tarun earns dollar $12.50 a day how much would he earn if he works for 6 days?
Solution:$12.50 in a day
12.50 multiple by 6
=75
Ans.$75
HOPE IT HELPS
CARY ON LEARNING