Which of the following equations have exactly one solution? choose all answers that apply: a: 58x+52=78x−78 b: −78x+52=−52x−78 c: 52x+52=52x−78 d: 58x+52=−78x−78

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal

Which number line correctly shows 0.8 + 0.3?

The stem-and-leaf plot shows the heights in centimeters of teddy bear sunflowers grown in two different types of soil. soil a soil b 5 9 5 2 1 1 6 3 9 5 1 0 7 0 2 3 6 7 8 2 1 8 3 0 9 key: 9|6 means 69 key: 5|8 means 58 calculate the mean of each data set. calculate the mean absolute deviation (mad) of each data set. which set is more variable? how do you know?