What is the product of 5-3i and 4-5i a.9-8i b.5-37i c.35-37i d.20-52i e.20+15i

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9