the mean of 10 numbers is 10.8. seven of these numbers have a mean of 12 and the other three have a, (a + d) and (a + 2d). Determine (a +d)

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Write each fraction as an equivalent fraction with a denominator of 120then write the original fractions in order from samllest to largest

Will possibly give brainliest and a high rating. choose the linear inequality that describes the graph. the gray area represents the shaded region. 4x + y > 4 4x – y ≥ 4 4x + y < 4 4x + y ≥ 4