Answer:
7x-10
Step-by-step explanation:
Answer: 18
Step-by-step explanation: for the boys 4 times 18 equals 72 so there are 4 rows of 18. for the girls 5 times 18 is 90 so 5 rows of 18.
Answer:
A scientist adds drops of liquid to a test tube. The test tube has marks every ml.
Each drop contains 0.14 mL. Between which two marks on the test tube will the
liquid be after the sixth drop is added?
a. 1/5 and 2/5, between 0.2 and 0.4 mL's
b.2/5 and 3/5, between 0.4 and 0.6 ml's
c.3/5 and 4/5, between 0.6 and 0.8 mL's
d. 4/5 and 5/5, between 0.8 and 1 ml