Answer:Step-by-step explanation:
so if you buy 2 jumpers it will be the cost of 1
and 30% of 50 is 15 so 15 + 15 = 30 plus 45 =
75
Answer:

Step-by-step explanation:

After removing one black marble:

C is greater than or equal to $40 (which means put the > sign with a line under it).
Answer:
false
Step-by-step explanation:
an integer is any number greater or less than 0
Answer:
0.45hg
Step-by-step explanation:
Just move the decimal place two places to the left when converting something to hectograms, for example 1045 grams is 10.45 hectograms just move the decimal place twice to the left for this conversion.