135,634,554 what i the value of the highlighted digit

I do not see the highlighted digit, but I will put it this way. 1 in the hundred millions place is worth 100,000,000, 3 in the ten millions place is worth 30,000,000, 5 in the millions place is worth 5,000,000, 6 in the hundred thousands place is worth 600,000, 3 in the ten thousnads place is worth 30,000, 4 in the thousands place is worth 4,000, 5 in the hundreds place is worth 500, 5 in the tens place is worth 50, and 4 in the ones place is worth 4.

Hope this helped!

Nate

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step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.