Older headstones are often difficult to read due to weathering that has worn away their letters. This is an example of which of the following types of weathering? 1.Grus
.2Thermal expansion
3.Abrasion
4.Shattering

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Two lines parallel to the same plane are parallel to eachother

Standard deviation of 19,29,21,22,23