28% x 358 = 28/100 x 358 =<u> 100 </u>7th graders have iphone
Answer:

Step-by-step explanation:
The circumference is the distance around a complete circle: in essence, the perimeter of a circle. The formula to find the circumference of a circle is the following:

Where (d) represents the diameter, the largest cord that can be drawn in a circle, it goes from one end to another, passing through the center of the circle. The parameter (
) represents the number (3.1415...). However, one is given a semicircle, thus one must divide the result in two, and then add the value of the diameter to find the perimeter of the given object. Therefore the equation for the circumference of this circle is as follows:

Substitute in the given value,

Simplify,



Answer:
should be (4a-5)x(4a+5)
Step-by-step explanation:
The distance between the two points on the number line is of
units.
-------------------------------------------
- The distance between two numbers on the number line is given by the <u>subtraction of the greater by the smaller number.</u>
- The greater number is

- The smaller is
. - The distance is:

Thus, distance of
units.
A similar problem is given at brainly.com/question/10795861