Reviewer math 6

Each side of pentagon measures 10 cm. What is perimeter of pentagon?

What is the greatest common factor of 91, 65, 338?

What is the least common multiple of 147 and 63?

What is the number exactly between 2/3 and 3/5?

Elsa’s grades in Math from 1^st to 3^rd grading are 88, 91, 92. What must be her grade in 4^th grading to get an average of 92?

John is 3 less than twice the age of Janet. If Janet is 16 years old, how old is John?

What is 0.151515… if written in fraction?

40% of what number is 25% of 40?