Trina has two bags with 14 pine cones in each bag she has 7 boxes with 15 acorns in each box if she trades 5 pine cones for 10 acorns how many pine cones and acorns does she have

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Assemble the proof by dragging tiles to the statements and reasons column

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