Cuántos números de cuatro cifras tiene exactamente dos dígitos iguales a 0​

The sum of the first eight terms of an arithmetic progression is 9m + 14. the fifth term of the06 progression is 2m - 6, where m is a constant.given that the first term of the progression is 26,find the value of the common difference, d and thevalue of m.

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

The longer leg of a 30-60-90 trangle is 18