answer all three of the questions below.

1. write an equivalent expression to 2 + 3 + 5 + 6 by combining like terms.

2. find the sum of (8a – 2b - 4) and (3b − 5).

3.write the expression in standard form: 4(2a) + 7(−4b) + (3 ∙ c ∙ 5).

52 cm radius = diameter = area = circumference = circumfer

X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95