The test scores for two algebra classes are shown in the Stem and Leaf below. Test Scores
Period 9 Period 10
8 7 2 1 5 9
9 5 3 6 7 8
7 4 2 0 7 0 1 8
3 2 8 5 7 8
8 2 1 9 1 2 5 8
10 0 0

If square root x = -7, then x= -49 true or false

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9