Answer:
9
Step-by-step explanation:
h=x+2
w=x
h+w=20
x+x+2=20
2x=18
x=9
w=x=9
width = 9
Answer:
It's -539
Step-by-step explanation:
539 is a positive number in this one, so to find the opposite, you'd make the number a negative one, which is -$539
Answer:
2 and 1/4 or 2.25
Step-by-step explanation:
6/8 ÷ 2/6...
so 6/8 × 6/2...
36/16...
9/4..
2 1/4 or 2.25
Answer:
19n+9u=7500 and 4u-n
Step-by-step explanation: