Devi has a grid in the shape of a parallelogram. she has equilateral triangles. each equilateral triangle has an area of 40 square millimeters and each equilateral triangle fits on the grid.

if the base of the grid is 26 centimeters and the height is 10 centimeters, how many triangles can devi fit on the grid?

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500