Which actions can a developer perform using the Schema Builder?Choose 2 answers

Given the code block: Integer x; for (x =0; x<10; x+=2){
if (x==8) break; if (x==10) break;
} system.debug(x); Which value will the system.debug display?

A developer in a Salesforce org with 100 Accounts executes the following code using the Developer console:Account myAccount = new Account(Name = 'MyAccount');Insert myAccount;For (Integer x = 0; x <
150; x++)
{Account newAccount = new Account (Name='MyAccount' + x);try {Insert newAccount;} catch (Exception ex) {System.debug (ex) ;}}insert new Account (Name='myAccount');How many accounts are in the org after this code is run?

A developer needs to test an Invoicing system integration. After reviewing the number of transactions required for the test, the developer estimates that the test data will total about 2 GB of data storage. Production data is not required for the integration testing.
Which two environments meet the requirements for testing? (Choose two.)

What are three ways for a developer to execute tests in an org? Choose 3.