help please

1- Calculate the expected return on a portfolio that contains 30% of a stock with an expected return of -1% and 70% of a stock with an expected return of 7%. (Enter your answer as a percentage rounded to 2 decimal places. For example, enter 1.53% instead of .0153.)

2- If a companys profit margin is 6% and its total asset turnover ratio is 1.7, what is its return on assets (ROA)?

Enter your answers as a percentage rounded to 2 decimal places. For example, enter 8.43 (%) instead of 0.0843.

3 - You have the following income statement data:

Sales

$890

Cost of goods sold(Depreciation not included)

$497

Depreciation

$110

Interest expense

$75

Tax rate

30%

Calculate net income. Round your answer to 2 decimal points; example 234.12.