Найдите значение выражения:
а)39х-5х-4х+28 при х=3,х=5
б)28у-18у+6у при у=1,у=2
помогите

1 Linda Don"t have to/ Does have to/Doesn"t have to walk the dog in the evening. 2 We Have to/ Has to/Doesn"t have to wear warm clothes in the winter. 3 Peter Have to/Has to/Don"t have to play the violin every day. 4 You Haven"t/Don"t have to/Doesn"t have to help me. I"m OK. 5 I have to/Do I has to/Do I have to work on Saturdays? 6 Jim has to Wash/Washes/Washing the dishes after dinner.

с первой грядки собрали 320 кг моркови,со второй в 10 раз меньше,чем с первой,с третьей на 154 кг больше,чем со второй.сколько кг моркови собрали с третьей грядки?