Estimate 15% tip on a dinner bill of $59.12 dollars by rounding the first bill amount to the nearest

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

What is the ratio of the length of an object in yards to the length of the same object in miles?

If the car had not hit the fence, how much farther would it have skidded? solve the skid-distance formula to find the extra distance that the car would have traveled if it had not hit the fence. round your answer to two decimal places. note that unit conversion is built into the skid distance formula, so no unit conversions are needed.