Simplify the expression:

(7 + 9i) (8 - 10i)

56 + 2i + 90

56 + 2i - 90i^2

97 + 72i

146 + 2i

How many names are for square

Prime or Comosite: 27

these mom bought an eight pack of juice boxes at the stores for 4$. find the unit rate for the juice box

A mapping diagram shows a relation, using arrows, between input and output for the following ordered pairs: (negative 3, negative 4), (0, negative 4), (negative 2, 2), (negative 2, negative 1), (1, negative 3), (3, 7).

Charlotte's family bought a 2-pound block of cheese. There is 1/4 of the block of cheese left. How many ounces of cheese has Charlotte's family eaten?

Determinati numarul b astfel incat : (4x8) ^15 : 4^5:2^6=2^b si 3^4x3^5x3^17=3^b

1/x=6/x+15, 20-x/x=6/4, and 4/12=x+2/2x+13

If a sample of 26 students is taken from a population of 135 students, the population variance, o?, is the variance of how many students' heights? O A. Neither 26 nor 135 B. Both 26 and 135 O c. 135 O D. 26

Robert collected 330 aluminum cans. If 100 aluminum cans weigh 4 pounds, and the recycling center is paying 25 cents a pound, how much will Robert be paid for his 330 cans?

A single box of thumb tacks weighed 3 1/2 ounces. If a teacher had 4 1/7 boxes, how much would their combined weight be