Calculate the variance for the following data: C. I. : 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80

Frequency : 5 8 7 12 28 20 10 10​

2-digit numbers less than 91 which are 1 less than a multiple of 10

Yosef can eat 21 jamuns while rose can eat just 15 . complete the blank. yosef can eat % more jamuns than rose.

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.