John is buying fencing for his yard. he pays $122 for 5 fence boards and 4 fence panels. he pays $570 for 21 fence boards and 20 fence panels. how much does one fence board cost? how much does he pay for 3 fence panels?

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?

Katie wants to collect over 100 seashells. she already has 34 seashells in her collection. each day, she finds 12 more seashells on the beach. katie can use fractions of days to find seashells. write an inequality to determine the number of days, dd, it will take katie to collect over 100 seashells.