4. Problema de Distancia: Un coche viaja a una velocidad de \( 606060 \mathrm{~km} / \mathrm{h} \). Si viaja durante \( x \) horas, recorrerá 180 km . ¿Cuántas horas viajó el coche? - Ecuación: \( \mathbf{6 0 x}=180 \)

Factorise coumpletely. \( 21 a^{2}+28 a^{b} \)

[-/2 Points] DETAILS MY NOTES TGEIALG6 2.5.053. The perimeter of a regulation singles tennis court is 210 feet and the length is 3 feet less than three times the width. What are the dimensions (in ft ) of the court width length

Find the slope and the \( y \)-intercept of the line with the given equation. \[ 4 x+3 y=9 \] slope \( y \)-intercept \( (x, y)=(\square) \) Submit Answer

Verifique se a equação abaixo é ou não é uma proporção \( \frac{2-2 x}{3 x}=-\frac{1}{3} \)

Find the \( x \) - and \( y \)-intercepts of the graph of the equation. Do not graph the line. \[ \begin{array}{l}7 x+5 y=35 \\ x \text {-intercept } \quad(x, y)=(\square) \\ y \text {-intercept } \quad(x, y)=(\square)\end{array} \]