Two co-teachers, Daniel and Mathew, have to grade a set of math journals. Daniel grades 45% of the journals and Mathew grades 55% of them.
Mathew has to grade 121 journals. How many total journals have to be graded?

220

Step-by-step explanation:

55 percentage of x = 121

so X = 220

as simple as that

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

pls mark as brainliest

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed