Δabc is similar to δdef. the ratio of the perimeter of δabc to the perimeter of δdef is 1 : 10. if the longest side of δdef measures 40 units, what is the length of the longest side of δabc ? a. 2 units b. 4 units c. 16 units d. 30 units

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

43lbs of tomatos cost $387. how much would 41lbs cost

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?