1) write the expression in standard form.

7/ 3-15i

a. 7/78 - 35/78i

b. -7/78 - 35/78i

c. 7/78 + 35/78i

d. -7/78 + 35/78i

2) find the product of the complex number and its conjugate.
1 + 3i

a. 1 + 9i

b. 10

c. -8

d. 1 - 9i

Ican interpret and represent the remainder in division calculations sensibly for the context (eg 27.4 in calculating average height in cm: $27.44 if it represents an amount of money) solve the following problems. 15) the wildlife park charges $25.50 dollars per person to enter their park if the park made $15096 dollars today, how many people entered the park? 16) ms adams plus 2,230 other keen runners ran a marathon: between them they ran 94817.5km. how many km did each competitor run?