A grain of sand with a diameter of 0.06 millimeter has a mass of approximately
3.0 x 10^-13 gram. How is the mass of a grain
of sand expressed using standard notation?

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys