When Zoe spent 10 minutes on the elliptical trainer and then did circuit training for 15 minutes, her fitness app said she burned 385 calories. When she spent 20 minutes on the elliptical trainer and 15 minutes circuit training she burned 545 calories. Solve the system: { 106 + 150 = 385 203 + 156 = 545 for e , the number of calories she burned for each minute on the elliptical trainer, and c , the number of calories she burned for each minute of circuit training. e n II C] C] Delaney left Riverside, California, driving her motorhome north on Interstate 15 towards Salt Lake City at a speed of 42 miles per hour. Half an hour later, Roberto left Riverside in his car on the same route as Delaney, driving 49 miles per hour. Solve the system: 42392493: y=x+% A. for a: to find out how long it will take Roberto to catch up to Delaney. C] B. What is the value of y , the number of hours Delaney will have driven before Roberto catches up to her? C]