Which shows the correct way to use expanded form to multiply 38,070 × 100? (30,000 + 8,000 + 70) × 100 = 3,000,000 + 800,000 + 7,000 (30,000 + 8,000 + 700) × 100 = 3,000,000 + 800,000 + 7,000 (30,000 + 8,000 + 70) × 100 = 30,000,000 + 8,000,000 + 70,000 (30,000 + 8,000 + 700) × 100 = 30,000,000 + 8,000,000 + 70,000

times 100=

Step-by-step explanation:

the correct way to use expanded form to multiply 38,070 × 100

In 38,070 the 7 is in tens place, 8 is in thousands place and 3 is in ten thousands place

so 38070 can be written as

times 100

multiply 100 inside the parenthesis

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.