José has a monthly budget of $80 to put toward his hobby of building model
trains. he can afford to pay cash for his purchases, but he uses his credit
card to buy items at the hobby store for amounts that do not exceed his
budget
assuming josé pays his balance in full every month, is he using his credit
card wisely?
oa no, he should always pay cash if he can.
ob yes, he has already budgeted for this expense,
oc. no; he should only use credit cards for important purchases.
od yes, he can use his cash to pay for something else he wants

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.