Answer:5 days
Step-by-step explanation:
16 divided by 4=4 postcards a day
20 divided by 4=5
5 days in total
hope this helps . Please mark brainliest
Answer:
1/60
The surface area of a cylinder is the sum of the areas of the two bases and the area of the lateral surface. If the height of the cylinder is doubled, the area of the lateral surface is doubled, but the areas of the bases remain the same.
x=-11
y=-1
x=4y-7
2x+9y=-31
2(4y-7)+9y=-31
8y-14+9y=-31
17=-31+14
17y=-17
x=4(-1)-7
your answer is 4,561.593
