Answer:
15
Step-by-step explanation:
3x - 2y = ?
3(7) - 2(3) = ?
21 - 6 = ?
= 15
All you have to do is substitute the given values & follow the order of operations! Best of luck.
Answer:
The first one and the second one
Step-by-step explanation:
Answer:
Scalene Traingle
Step-by-step explanation:
All the sides given are not equal so it is a scalene triangle
Answer:
16x+0
Step-by-step explanation:
Collect like terms
11x+5x+9-9
Then add and subtract them
16x+0
He needs to buy 4.5 packages of footballs because 4 is equal to 16 and half of four is 2 add them together you get 18