Round the following numbers to the nearest tenth and nearest ten.a. 699.34b. 764.148c. 668.9d. - 47.517a. 699.34 rounded to the nearest tenth is and rounded to the nearest ten isb. 764.148 rounded to the nearest tenth is and rounded to the nearest ten isc. 668.9 rounded to the nearest tenth is and rounded to the nearest ten isd. -47.517 rounded to the nearest tenth is and rounded to the nearest ten is.