Answer:
Step-by-step explanation:
Let x is the length of the square side.
We know: the two figures have the same area
<=> 
= π
(r being radius)
<=> x = 
r
perimeter square = 4x = 4*r*
perimeter circle = 2*r*π
<=> 390 = 4*r* + 2*r*π
<=> r = 29.16
=> perimeter square = 4*29.16*π
=> perimeter circle = 58.32π
<em>.... what is this train..... ❓❓</em>
The least number of books that could be in the box is 30. The number of books in the box could be any number that is a multiple of 30.
In here, we could write an equality as x – 12 < 65. In solving inequalities, we follow the same rule as solving algebraic expressions. We will transpose 12 to the other side, giving us x < 65 + 12. Simplifying, we have x < 77. Geraldo must have a bill less than $77 in order for him not to spend more than $65.
Answer:
The first and third is correct.
Step-by-step explanation:
I'm not a expert but I know its right.
