James can hammer a 2-inch nail in 4 seconds. His friend Lindon can hammer a 2-inch nail in 5 seconds. If both start hammering nails at the same time, 1:15:40p. m. when will they next start hammering a nail at the same time?

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?