Carter has 60 balloons. 412 of the balloons are black, and 312 of the balloons are white. The rest of the balloons are red. Which series of calculations shows how many red balloons Carter has?
12/12= 3 × 4/12; 1/12 × 60 = 5; 4 × 5 = 20 red balloons
4/12+ 3/12 = 7/12; 1/12 × 60 = 5; 7 × 5 = 35 red balloons
12/12– 4/12 – 3/12 = 5/12; 1/12 × 60 = 6; 6 × 5 = 30 red balloons
4/12+ 3/12 = 7/12; 12/12 – 7/12 = 5/12; 1/12 × 60 = 5; 5 × 5 = 25 red balloons

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

Which function has the domain x> -11? y= x+ 11 +5 y= x-11 +5 y= x+5 - 11 y= x+5 + 11

The correlation coefficient between the number of students and marks obtained in end semester exam. (13 marks) give the statistical meaning of the relationship between the number of students and marks b. obtained in end semester exam. (3 marks) draw the number of students and marks obtained in end semester exam scatter diagram c. (4 marks) check list write your name and id corectly write the question number properly use your own calculator. show all the steps to solve the problems. use the correct formula. answer in provided time. don't use your mobile for any purpose. write your answer up to two decimal places