If a and b are singular n x n matrices, then a+b is also singular.

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much