Cody is saving money for a new skateboard that costs $77.99. he already has $20 in his savings account. he earns $6 for every lawn he mows. if he mows 3 lawns a weekend, how long will it take him to save enough money for the skate oard?

What kinds of numbers have an odd number of factors?

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)