Sameeha is taking an antibiotic prescription. Sameeha takes 50mg on the first day, and then 50mg each day for the next 6 days. The iteration that describes the amount of the medication in Sameeha's system at time t is f(t)= 0.40t +50 where t0=50 . How much medication is in Sameeha's system after she takes her last dose of the medication? Round to the nearest tenth, if needed. 82.9 mg

78 mg

50 mg

83.2 mg

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

The monthly texting plan of all star cell is $11 per month and $0.25 per text. the monthly texting plan of top line cell is $14 per month and $0.15 per text. a student wants to set up a system of equations to find the number of texts for which the total monthly cost of the two companies is the same. he uses the variables x and y. he lets y represent the total monthly cost. what will x represent? x = number of texts x = cost of the total number of texts x = total monthly cost x = cost of each text

In a quadratic function of the form ax^2+bx+c, which of the following is not true? a. the y-intercept is c. b. if a is positive, the parabola opens up. c. the vertex has an x-coordinate of -b/2a. d. the axis of symmetry is the line y=-b/2a.