What is the common difference for the arithmetic sequence? –5, –1, 3, 7,
a. 6
b. –4
c. –6
d. 4

Asalsa recipe uses green pepper, onion, and tomato in the extended ratio 3: 5: 7. how many cups of tomato are needed to make 105 cups of salsa? a. 7 b. 21 c. 35 d. 49