Please do all parts, Thank you!

4. Determine in each of the following examples at what share price you will receive a margin call. Round prices to the nearest cent and round shares to the nearest whole number. a. You borrow $10,000 on margin and buy shares of a stock currently trading for $25 per share. Your initial margin requirement is 50% and the maintenance margin is 35%. b. You borrow $7,000 on margin and buy shares of a stock currently trading for $35 per share. Your initial margin requirement is 40% and the maintenance margin is 30%