How many ways can someone randomly dial a
7-digit phone number?

10 million or using the numbers 0 through 9, also in scientific notation the answer is 10^7.

so the possibilities of the measurement of the side of the triangle are either it is longest side or not the longest side

when it is the longest side

s < 25 + 35s < 60

if it is not the longest side

35 < 25 + s10 < sso 10 < s < 60so the perimeter70 < p < 130