Solve. The following decimal number operations. 1 a. 1.2 + = 1.8

1 b. 3.9 + = 7.47

2 a. + 3.8 = 7.9

2 b. + 0.36 = 0.36

3 a. 1.2 + = 4.1

3 b. + 0.63 = 6.33

4 a. 4.1 + = 7.68

4 b. + 0.9 = 3.8

5 a. 5.1 + = 5.98

5 b. 3.1 + = 4.3

6 a. 0.7 + = 1.3

Divide. write in simplest form 41/6 divided by 10

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.