Write the ordered pair that represents line YZ then find magnitude of line YZ ; y(-4,12), z(1,19)

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)

Two trains leave a station on different tracks. the tracks make an angle of 130°, with the station as a vertex. the first train travels 100 km and makes its first stop at point a, while the second train travels 200 km and makes it first stop at point b. how far apart are the trains when both are at their first stop? round the answer to the nearest integer. a) 65 km b) 139 km c) 224 km d) 275 km

Shane and abha earned a team badge that required their team to collect no less than 20002000 cans for recycling. abha collected 178178 more cans than shane did.