Given: klmn is a parallelogram
m∠n=3m∠k,
lf
⊥
kn
,
ld
⊥
nm
kf=2 cm, fn=4 cm
find: lf, ld

how to solve it

What is the number 321,000,000 in scientific notation? also what is the number? ?

Long division the problem is 40 ➗ 348 = ?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28