Answer: The last one
Step-by-step explanation:
The answer would be 20. PEMDAS would have you do multiplication first which makes you do 3 times 7. 3 times 7 would give you 21 and then you minus 1 which gives you 20
Answer:
4.305
Step-by-step explanation:
hope this helped <3.
Answer:
y=-3/5x+ 3
Step-by-step explanation:
y = mx + b.
Scale = 1cm:3km
Therefore area of lake = 81Km
1:3 = x:81
= 27:81
Therefore the area on map is 27cm
Must click thanks and mark brainliest