Are the lines y = –x – 4 and 5x + 5y = 20 perpendicular? explain.

No. they are parallel bc when u turn tge standard form to slope intercept form it is. the same slope diferent intercept

Rounding decimals is very similar to rounding other numbers. if the hundredths and thousandths places of a decimal is forty-nine or less, they are dropped and the tenths place does not change. for example, rounding 0.843 to the nearest tenth would give 0.8. , your welcome !