How do you write the equation to get the sum of 20.000 × 26% which equals 25.220 ,i don't know how to write 20.000 × 26% ?

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

Find the common ratio of the sequence. -4, 8, -16, 32, a: -12b: -2c: 12d: -1/-2

Compound inequalities. , i’m being timed