Answer:
4 by 10
Step-by-step explanation:
4 times 10 is 40 (length times width)
4+4+10+20=28
X=7
7*15=105 7-2=5 5*25=125 125+105=230
$45
r = 9
cross multiply
9 * r = 81
9r = 81
divide both sides by 9
r= 81/9
Answer: - 8
3+(−4)−8−(−1)
3 - 4 - 8 + 1
3 - 12 + 1
-9 + 1
- 8
